Top Definition
A crossed inbred of a twat and a spasm! In other words, someone who is a complete DIVWAD!!
Example: Emz
by Emz+Madz January 24, 2004
2 Words related to Twasm
Uncontrolled movement as a side-effect of chemical overindulgence.
"Sorry I spilt your coffee, my hand's twasming a bit."
by James Harlow April 18, 2005

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