The sneaky hat, also known just as sneaky hat, is a hat that one uses to cover one's private parts shortly after getting naked. It is most commonly done in order to get a photo in front of the mirror for facebook, with the main incentive for this activity being 'the lols'. The majority of sneaky hat photos feature white, drunk men, however there are some sneaky hat photos featuring attractive specimens of the opposite sex.
After starting on the 16th november 2011 it shortly became an internet phenomenon, prompting many lols from fellow nerds on the internet.
*posts pic of sneaky hat on Facebook's sneaky hat page*
user 1: lol
user 2: wtf?
user 3: HAHAHAHAHHAHA SLUT
When people that are your friends (or are supposed to be) tell you fucked up jokes right to your face, insulting fucking jokes followed by a "nah nah nah". Those people are sneak haters. NOTE: There's a thin line between fucking around with your friends which is a normal thing to do, and sneak hating. If your friends are doing this to you, they're probably also talking shit behind your back.
Man, last time I saw Joe at that party he kept making fun of my Shoes, but when I raised an issue he'd just say "I'm just kidding bro, take it easy". That fucker was sneak hating on me so hard! I'm sure he was making fun of me later at the party after I left! Can't trust those sneak haters.