1 definition by The Webbinator

Top Definition
Someone who laughs hysterically at something he/she just said. Typically this comment is not funny at all to others who hear it, they may wind up laughing just because the self-laugher is laughing so hard
Man he told the lamest joke in class today he laughed for like an hour at it, he is such a self-laugher.
by The Webbinator October 20, 2009

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