1 definition by Harry R.M. Pitts
Extreme stench coming from your armpits. Another name for 'body odor', or BO. A portmanteau of 'armpit', and 'halitosis'.
My boyfriend didn't take a shower, or use deodorant after his daily workout, so he has a sever case of armpitosis
by Harry R.M. Pitts June 27, 2013