How someone may respond when something outlandish or surprising is said.
"Omgah...that slays me!"
To kill. Mainly archaic. Possibly an impressive feat of arms resulting in the death of the opponent.
Past tense is either "slew", or occasionally "slain".
"Slay him!"
He slew his opponent in a duel.
St George is famous for having slain a dragon.
To destroy someone. Mainly cretins.
#SlayTheCretins
or
"Damn what a fucking cretin, SLAY HIM!"
or
"U fkn cunT i slAy u"
To go out drinking and take home a sexual partner.
I'm going to slay Jed tonight, no matter what it takes.
To dip; to use chewing tobacco, also used as a noun to mean dip. commonly used to discretely suggest to another that the two should go to dip in the bathroom. The phrase "Slay all dayyyyy" is used by non dippers to ridicule the dippers because at one time the phrase was quite common in the dipping community and taken seriously. The word is still in use although a few teachers and administrators in the area have discovered the meaning rendering the term un-usable in their presence.
Harrison: hey man lets go slay a grizzly in the bathroom
Riv Dog: Slay all dayyyyyy
Teacher: I know what that means.
Harrison: shit
meaning that you had sex with someone.
I slayed that girl last night. We went at it all night long.
I had sex with that girl last night. We went at it all night.
"smirking like an idiot"
you might laugh to yourself, but there's gotta be those people (and times) who do their best to hold in their laugh (to avoid being thought of as insane by their neighbors), and end up with an idiotic expression of joy on their faces.
sn1: i think that movie will be super cute
sn2: ... see, i would say that, but that's gonna take away my manliness...
sn2: oh screw it. yeah, i wanna see it b/c it looks cute and makes me feel all fuzzy inside.
sn1: ...slai!