-You just hook up and never actually get to know the poor thing. And if it ever wanted to get to know you, you wouldn't give it a chance because it's the underdog.
trainer: uh.. no. i just like making out with you.
(the trainer would not date the underdog because for whatever reason the underdog is not bf/gf material. but it is acceptable to make out with it.)
OMG everyone says FireFox Ownz, and its the underdog also, so it must be good. Anyone who doesn't have Firefox is a stupid nubzor. All you little nub kids need to get it now! I don't even know why it's good, everyone else told me it was.
1) Gives you a blowjob
2) Gives you a handjob
3) Fists you. Usually associated with homosexuals.
When a female hangs upside down and you insert your dick in her vagina.
Girl1 -"Orrr, You can get into an underdog and I can give you pleasure."
Guy 2 -"hey, can you get into an underdog?"
Guy 3 -"Sure."