brain ‧ fart /ˈbreɪnfɑːt $ -fɑːrt/ BrE AmE noun [countable] informal
an occasion when you suddenly cannot think of what you should say when you are in the middle of saying something
brain ‧ fart /ˈbreɪnfɑːt $ -fɑːrt/ BrE AmE noun [countable] informal
an occasion when you suddenly cannot think of what you should say when you are in the middle of saying something
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012