The clumsiness and forgetfulness you start to feel at work when you are stressed or tired. (Usually happens near the end of a 8 hour or longer shift.)
Ah damn I dropped another plate, I've got a bad case of work brain.
A Blowjob, another word for head
Heig was getting some good brain work from that 3 O'Clock throw back.
That bitch gives some good brain work
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