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1.
An annoying flaunting of one's abdominal muscles.
"Jeez, Matthew McConaughey takes his shirt off every chance he can."
"Yeah, he's so abnoxious."
by Ben E. B. May 16, 2008
 
2.
The act of being irritatingly shirtless any chance one gets.
Did you see Mike The Situation and Taylor Lautner comparing abs ?
Yeah, it was SO ABnoxious !
by 1987Exoticness January 09, 2013