Undergotchies 

The mesh inside of a male's bathing suit that holds his package in place while he partakes in water activities.

Stewart's junk was clearly held close to his body during his cannon ball attempt thanks to his Undergotchies.

Undergotchies by BlackGennies July 7, 2009

Undergotchies 

Underwear.

See also: Gitch

Dang, Tammy left her undergotchies in my washroom - and my girlfriend found them...!

Undergotchies by Time4SumAksion May 9, 2005

undergatchie

1. Underpants
2. Similar to a 'closet case,' however an undergatchie generally recieves less respect from his or her peers because of his or her blatant homophobia which is frequently countered by his or her homosexual experimentation/relationships

1. Your undergatchies are showing!
2. Wait - so he wanted you to give him head? But not because you're a man - he'd take head from a deer if the deer offered? My GOD, what an undergatchie. Why can't he just admit how homo he is?

undergatchie by Amy the Bohemian Pirate July 11, 2003