thikkinikki is a word to describe someone having thikk thighs.
'oh my gosh Rihanna, look.' 'oh my gosh! wow. she is suchhhh a thikkinikki. I am shooketh.'
Thicc meant to describe beauty AND COOLNESS.
TAYLOR Hey Katy! look at those cool jeans. those look thicc. Thicc means coolness.
Katy thicc? Oh yeah! That means coolness or beauty.