Top Definition
Named after the delicious dessert from the Squealing Pig in Boston, MA, this deviant sex act requires two people who engage in any form of sexual intercourse in a tanning bed, and then proceed to defecate in said tanning bed.
Yo dawg, imma call up Shirley and we are gunna drop sick mars bar toasties at Campus Tan.
#deviant #sex #act #poop #dessert #tanning
by Josh Lundgren April 10, 2006
6 Words related to Mars Bar Toastie
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