Top Definition
a term started by Martin Jacob. Can be used as a friendly, while still being "cool" greeting. Can also be used it any sentence, when the user of the word is performing an activity.
1) yo mike, wat up son!

2) Playing poker you get a flush: (nice i got a straight, wat up son)

3) Playing World of Warcraft: (dude captainD, i just beat the lich king, wat up son)

4) Watching a football game: (Wat up son, the giants just scored a touchdown)
by martin jacob December 07, 2008
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