A British sexual act involving a woman placing her labias upon another persons face and dipping up and down while standing.

*Essentially, the female version of a Teabag.
"Johnny likes it when I ride his face, but sometimes I like to biscuit dip."

"Fancy a biscuit dip?"
by illegal Hugs December 15, 2011
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Similar to labia 'teabagging', but in some places it refers simply to sexual intercourse between a male and a female.
Female: So dude what are you doing tonight?

Male: Ah you know, just dipping biscuits with my girlfriend!
by dieselsucker May 12, 2012
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