Random
Source Code
Random
Swimwear that looks like something your Grandma/Nan/Granny would wear.
Stu: "I like that swimming costume"
Jess: "What?! It's a Grankini!"
A bikini worn by a grandma, or an old lady.
The act of wearing this item of clothing usually results in bad reactions from public.
Man 1: Arr got a good ole Grankini to your right.
Man 2: Man, that's rough.