other ways to say brain fart

Certainly! Here are numerous alternatives to “brain fart”:

1. Mental lapse
2. Mind blank
3. Cognitive glitch
4. Mental hiccup
5. Memory lapse
6. Mental freeze
7. Mind hiccup
8. Brain freeze
9. Mental block
10. Cognitive slip
11. Blank moment
12. Mental lapse
13. Temporary memory loss
14. Momentary lapse of reason
15. Memory slip
16. Mental hiccup
17. Cognitive blip
18. Momentary lapse
19. Mind freeze
20. Cognitive stumble
21. Mental hiccup
22. Memory glitch
23. Cognitive hiccup
24. Mental blackout
25. Mental hiccup
26. Mental hiccup
27. Memory hiccup
28. Cognitive lapse
29. Mental hiccup
30. Mind lapse
31. Cognitive stumble
32. Memory lapse
33. Mental slip-up
34. Momentary brain freeze
35. Mental misfire
36. Mind misfire
37. Cognitive freeze
38. Brain hiccup
39. Memory hiccup
40. Mental hiccough
41. Cognitive hiccup
42. Mental hitch
43. Cognitive hitch
44. Mental hiccup
45. Cognitive hiccup
46. Mind lapse
47. Memory lapse
48. Cognitive blunder
49. Mental fumble
50. Cognitive fumble
51. Mind stumble
52. Memory stumble
53. Cognitive stumble
54. Mental blunder
55. Mind blunder
56. Cognitive lapse
57. Memory lapse
58. Mental lapse
59. Cognitive blip
60. Memory blip
61. Mental stumble
62. Cognitive stumble
63. Memory stumble
64. Mind glitch
65. Cognitive glitch
66. Memory glitch
67. Brain hiccup
68. Cognitive hiccup
69. Memory lapse
70. Brain blip
71. Cognitive blip
72. Memory blip
73. Mind lapse
74. Mental misstep
75. Cognitive misstep
76. Memory misstep
77. Mind freeze
78. Brain freeze
79. Cognitive freeze
80. Memory freeze
81. Mental lapse
82. Mind lapse
83. Memory lapse
84. Cognitive lapse
85. Mental blank
86. Mind blank
87. Memory blank
88. Cognitive blank
89. Mental blunder
90. Mind blunder
91. Memory blunder
92. Cognitive blunder
93. Mental gaffe
94. Mind gaffe
95. Memory gaffe
96. Cognitive gaffe
97. Mental error
98. Mind error
99. Memory error
100. Cognitive error
101. Mental oversight
102. Mind oversight
103. Memory oversight
104. Cognitive oversight
105. Mental mistake
106. Mind mistake
107. Memory mistake
108. Cognitive mistake
109. Mental lapse
110. Mind lapse
111. Memory lapse
112. Cognitive lapse
113. Mental lapse
114. Mind lapse
115. Memory lapse
116. Cognitive lapse
117. Mental slip
118. Mind slip
119. Memory slip
120. Cognitive slip
121. Mental glitch
122. Mind glitch
123. Memory glitch
124. Cognitive glitch
125. Mental flub
126. Mind flub
127. Memory flub
128. Cognitive flub
129. Mental snafu
130. Mind snafu
131. Memory snafu
132. Cognitive snafu
133. Mental confusion
134. Mind confusion
135. Memory confusion
136. Cognitive confusion
137. Mental mistake
138. Mind mistake
139. Memory mistake
140. Cognitive mistake
141. Mental oversight
142. Mind oversight
143. Memory oversight
144. Cognitive oversight
145. Mental blooper
146. Mind blooper
147. Memory blooper
148. Cognitive blooper
149. Mental blip
150. Mind blip
151. Memory blip
152. Cognitive blip
153. Mental gaffe
154. Mind gaffe
155. Memory gaffe
156. Cognitive gaffe
157. Mental slip-up
158. Mind slip-up
159. Memory slip-up
160. Cognitive slip-up
161. Mental goof
162. Mind goof
163. Memory goof
164. Cognitive goof
165. Mental hiccup
166. Mind hiccup
167. Memory hiccup
168. Cognitive hiccup
169. Mental lapse
170. Mind lapse
171. Memory lapse
172. Cognitive lapse
173. Mental flub
174. Mind flub
175. Memory flub
176. Cognitive flub
177. Mental stumble
178. Mind stumble
179. Memory stumble
180. Cognitive stumble
181. Mental blunder
182. Mind blunder
183. Memory blunder
184. Cognitive blunder
185. Mental error
186. Mind error
187. Memory error
188. Cognitive error
189. Mental oversight
190. Mind oversight
191. Memory oversight
192. Cognitive oversight
193. Mental slip
194. Mind slip
195. Memory slip
196. Cognitive slip
197. Mental lapse
198. Mind lapse
199. Memory lapse
200. Cognitive lapse

These alternatives can add variety to your language when expressing moments of forgetfulness or mental lapses.