tart 2 
(tärt)
(tärt)n.
1.
a. A pastry shell with shallow sides, no top crust, and any of various fillings.
b. Chiefly British A pie.
2.
a. A prostitute.
b. A woman considered to be sexually promiscuous.
tr.v. tart·ed, tart·ing, tarts
Chiefly British
Chiefly British
To dress up or make fancy in a tawdry, garish way. Often used with up.
[Middle English tarte, from Old French, probably variant of tourte, from Late Latin tōrta, a kind of bread; see TORTILLA.]