ta-tas
Casual British farewells
Ta-tas is informal slang for breasts, typically used playfully or euphemistically: Nice ta-tas.
The term is mildly vulgar but lighthearted, more likely in casual male conversation than formal settings.
Separately, ta-ta (usually singular) is a British informal way of saying goodbye, from baby talk.
boobs
Foolish or stupid people
cleavage · knockers · mammaries · bosoms · jugs · melons · hooters · rack · titties · funbags
goodbye
Departing salutation
see you · waving · parting · departure · sendoff · leaving · adieu · ciao · later · so long