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2.
When a Guy gives a girl his coat and it smells like the guy still.
"MMMM smells like a mansweater."

"fuck off i hate you."

the last statement6s bullshit but i thought it was appropriate.
by Sir Fathom May 14, 2009
 
1.
a really hairy back and chest on a man; some men shave off their man sweaters
I don't take off my shirt in public because of my man sweater!
by Paul Thundergod July 09, 2003
 
3.
any sweater worn by a man that causes one to question that man's man-ness.
As in, "Look at that man sweater. Ha ha ha.. what a fairy!"
by Robert Doisneau December 05, 2003