A user-friendly way of saying Thundercunt. Often used in acts of anguish, anger, or despair to describe an excessively whorish or bitchy person.
FUCK! That Sondra's such a thunderbunt!

-Mike your house is burning down!
-AHHH!!! What a thunderbunt!
by Quantum Bitch-Slap September 14, 2007
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