Top definition
1) riding a tidal wave of promiscuity
2) after a night of raunchy and riotous sex, one's room is completely destroyed.
1)Tiger Woods: Man I have been on a screwnami
Friend: What is that?
Tiger: I've slept with 5 women this week
Friend: It's Tuesday....

2)Man I think the screwnami hit my room last night!
by Sheff4 December 02, 2009
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