Top definition
Underoos are children's cartoon underwear depicting cartoon characters. Popular cartoon characters on Underoos include Superman, Spider-Man, and Scooby-Doo.
child 1 - Check out my new underroos
child 2 - Sweet Spider-Man!
by teul2 September 25, 2006
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Apr 23 Word of the Day
1. noun. It is the sudden feeling of an inexplicable joy one gets when something romantic or idealistic occurs.

When kilig, one may experience the following:

*butterflies in one's stomach
*heart melting
*shivers down one's spine
*irrepressible noises from one's mouth
*uncontrollable smiling
*an inner conflict between hope of something wished for and reality

Kilig may also be defined as that mountain top, floating, on cloud nine, invincible, i-could-keep-smiling, heart aching goodness and feeling which overpowers the mind's ability to think straight, act straight, breathe properly and articulate thoughts into a single comprehensible sentence.
KILIGS much?? ^_^
by mis2n.yoo June 07, 2011
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2
Underwear!!

*Note* (Usually used when refering to briefs)
Greg's under-roos are to skidmarks as canvas is to paint.
by Bent Himself June 17, 2003
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3
A type of underwear, usually briefs, with cartoon characters designed for children.
One time I was getting changed, I took my shirt off and some kid pantsed me, this left my thomas the tank engine underroos completely exposed. They pulled them up and hung me on a hook, my underroos did not snap, break, or tear for twenty minutes. Which left twenty minutes for people to laugh, and turn around and spank me. I now receive wedgies on a daily basis, all in embarrassing underroos, sometimes though I wear diapers to avoid them.
by Johnny Tightlipss March 16, 2019
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4
Panties, underwear, briefs and boxers: all forms of undergarments that people wear. Possible a vulgar way or slang way of saying it.
You own 30 pairs of under-roos but only really wear about 4 pairs!
by RRR June 09, 2004
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