A phase during adulthood when a man first develops moobs. Usually begins in
mid to
late 30s but has been known to happen in
late 20s in some male office workers.
Larry: Holy crap Frank, I didn't know you'd reached mooberty
already, your moobs are huge!
Frank: yeah it sucks, I've started getting moobsweat too. I wish my mother would buy me my first man
bra.