Top Definition
Portmonteau of thong and bikini, also spelled thongini. A swimsuit for women consisting of a bikini top and a thong bottom.
My girlfriend is too shy to wear her thonkini in public, but she is okay with going to the nude beach.
#stringini #strinkini #tankini #swimwear #tangini #minikini #micrini #microkini #bimini
by xov November 08, 2013
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