adj. In the manner of a skeezy, disturbed, chicken-hawking uncle or other dubious older dude.
Real citation: “In more recent years, fallen Mouseketeers Britney Spears and Christina Aguilera recognized that music videos involving school uniforms and/or nude body stockings would exponentially increase fatherly, big-brotherly and creepy-uncle-y tolerance for music that's pretty much unlistenable if you're not a thirteen-year-old girl.”
(Mark Binelli, “Confessions of a Teenage Drama Queen,” Rolling Stone, Issue 955)
Made-up citation: “Mmm, this bubble tea is yummy, coconutty, and creepy-uncle-y.”