Someone who is hardly noticed. Kind of the opposite of popular or the best, but not exactly the worst.

Siding with the underdog in a situation or debate simply because they are the underdog and regardless of whether or not you agree with them.

This term originates from the book 'Generation X' by Douglas Coupland.

The team/boxer/driver etc. that is expected to lose.

A person that is a hard worker at what he/she does.These people are the future champions or Bo$$e$ of the world.

"Train like an underdog, win like a champion" -Rockafella Family

the competitor who is at a disadvantage or picked to lose the competition

To push someone on a swing whilst going under them.

Noun: A sexual act typically performed during three way sex where the female is receiving vaginal or anal sex on all fours (doggy style) while the third party lies underneath and licks or otherwise performs oral sex on the female and possibly the male concurrent with their intercourse. The third party may be either female or male.

Verb: To perform oral sex on a female and possibly also the male while they are having intercourse (fucking).