"You can shut up now." Used mockingly in reference to people who, using stupid-looking internet shorthand, will say "k thx bye" ("okay, thanks, bye") when making a request on a message board or chatroom.
I don't think I'll be risking massive security holes in the software just so that you can write in pink. K THX BYE
Analogous phrase to "in love", to describe one's feelings for a person that one is interested in romantically but not currently in love with. As one can love another as a friend but not be *in* love, so can one like another as a friend but not be *in* like.
I think I'm in like with that girl we met last week.