Trying to scope whos smoking the herb just to rat they ass and put them in Jail--a narc, a drinking catholic with infinite DUIS and no jail time or a freemason southern baptist.
"That son of a bitch was unda cuva, thats what got us in here."
by Robert J. Blevins July 29, 2006
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The smelly cottage cheese like crap that is found under a mans bells.
The maintence guy never takes a shower he probably has the worst case of fum unda butta!
by Brando February 24, 2005
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Its like saying to ya homey..."Man do you understand me"
A potna ya unda digg what I'm saying
by pzzalini October 14, 2010
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1) Use of insider information in Australia to get something
2) Handshake with a cock (see also Handjob, Handie, Handjo,...)
"Use your down-unda-handshake to get us the information."

"I received a down-unda-handshake from that chick we met last week in Melbourne."
by AUtacobender January 17, 2014
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