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Slang for a nasty, smelly gross poonani.

Originates from the enormous ditches that fox-hunters jump over in search of tail.
Dude, don't tap Ayla, that girl has a serious dip of death!

Nadine: Hey baby, wanna get some of this dip of death?
Jim: Nah, i'll jump this dip of death thanks.
by AnagramForOrgies March 17, 2009
When a person, eases their head downward unto the brink of sleep and quickly snaps awake. Generally result of trying to be the last to fall asleep among group of friends.
Hailey had a dip of death, and when she sprang awake, she spilled her drink everywhere.
by hoesnotshmoes January 31, 2011