verb: when one pulls the back of a chair, couch, or loveseat to make the person sitting in the chair fall back backwards and scream like a little girl. Originated in Washington, DC.
Joe: What did you guys do last night?

Erin: Nothing. We chilled in the lounge until Fred came and Walstamed me. I fell on my ass and hit my head.
by LEO2 October 06, 2010
Top Definition
A Walstam is a mean, giant Swede who likes to tickle people and flip over the chairs they are sitting in when they are least expecting it. Walstams make rude and inappropriate jokes. Sometimes they're kind of creepy.
Don't worry about it, he's a Walstam. It's what he does
by LEO2 September 22, 2010
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