1: When you do something utterly stupid, it causes something bad to happen to you

2: suicide

3: Variation of self-own
Guy 1: He slipped on his skateboard and fell down the stairs, breaking his neck.

Guy 2: Self-PWNED!
by Tacosniffer May 12, 2006
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When an attempt to insult someone (or pwn them) backfires and results in self-humiliation.
<PersonA> eat my fucking shit
<PersonB> I would but I'm too busy suckin yo daddeh's cock
<PersonA> ....
<PersonB> er, wait..
<PersonC> self-pwn
<PersonB> fuck
by Snake0 June 12, 2007
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when one humiliates themselves to thepoint point of being pwned
Yo whats up with that kid during class, he is always making stupid comments and self-pwning himslef.
by coopertrooper March 18, 2011
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