Top Definition
The sound you make when you go to sit down but the chair is farther away from your ass than you anticipated, or not even there, so you do a full falling spasm.
Person 1: 'Oh look, a chair.'

*Starts to sit down*

*Person 2 pulls the chair away*

Person 1: 'TISPT.' *falls over*

Person 2: 'Ahahahahaha.'
by Cheesyla October 30, 2011

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