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1.
a female slag
Damn girl, you a tartlett!
by Brasto May 04, 2011
 
2.
A small version on tart.
Usually with an onion filling.

A stoned chef called Steve decribes this to Monica in a Friends episode.
Monica: 'So in about 6 and a half minutes we'll have some onion tartletts'
Steve: 'Tartletts. Tartletts. Tartletts.'
by FriendsFan0208 July 21, 2008