What is Phelps-o-gasm?
The tingly feeling both males and females get when they see Michael Phelps' abs.
Chick 1:HOLY SHIT MICHAEL PHELPS
Chick 2:Mmmmmm ooooh ahhh
Chick2: I know, I'm having a total phelps-o-gasm too!
See michael, phelps, michael phelps, orgasm, swim, swimmer, tingly