man stoopid

adj. something so stupid, only a man (or boy) would do it. Act ofa stupidity need not by done by a man, but can be performed by any person regardless or gender or identification. An incredibly stupid act clearly performed without thought for safety or reasonable chance of success.

Christina was totally reckless in the way she cleared the plates form the barbell by tipping it back and forth until they all fell off. All the reps of bench press clearly led to her acting man stoopid.