brain fart

noun

plural brain farts

informal + somewhat impolite

: a mental lapse caused especially by carelessness, forgetfulness, or inattention : brain cramp

… she stumbled over remembering when Sam was born and even had a brief brain fart where she forgot his name.

—Crushable

There are brain farts, and then there are very public brain farts in the middle of an NBA [=National Basketball Association] game.

—Alex Shultz

Word History

First Known Use

1987, in the meaning defined above

Rhymes for brain fart

• apart
• depart
• flowchart
• forepart
• impart
• pushcart
• rampart
• redstart
• restart
• subpart
• sweetheart
• upstart