Grankini

Swimwear that looks like something your Grandma/Nan/Granny would wear.

Stu: "I like that swimming costume"

Jess: "What?! It's a Grankini!"

by Mobsy April 29, 2009

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.

by FriendsFan0208 February 21, 2009