Top definition
A rippling motion starting from the boobs downwards towards the genitals, causing a semi erect penis to ripple too. this causing immense pleasure for the receiver, as well as an instinctual wave of extra cum when the fat guy finishes up.
Ryan gave his mum the tsunami
by Xjudge September 15, 2009
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2
While banging a woman from behind, drink a gallon of milk. Then pull out pretending to finish and vomit all over her back.
I gave your mother the tsunami and she lapped it all up.
by I_Said April 18, 2011
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