Tyler, The Creator -- I Didn't Share a Milkshake With Justin Bieber ... 'That's Gay'

Tyler, the Creator is adamant ... he didn't go splitsies on a strawberry milkshake with Justin Bieber during a burger run this week telling TMZ, "That's gay."

He also says he doesn't even like strawberries.

Oh, and Tyler made the comments last night at a Chick-Fil-A restaurant.

Tyler and Bieber posted photos of their late night food fest at a Fatburger in L.A. earlier this week. Sources inside the restaurant told TMZ they 100%, for sure, split the milkshake.

... not that there's anything wrong with that.