Common usage:

"Man, that group in the studio last nite was smellin-themselves, they thought they shit was hot or somethin'."

"Them A**-Holes was smellin' themselves hard, couldn't get over it, like they smell was captivating' or some shit."

"Watch it now, don't be smellin' yourself now while you out there, your smelf mite be irreconcilable, take over ya."

**Any application of the phrase close to this usage is appropriate.**

Bro since I got dirtpilled on Tuesday I have made sooo many worm friends and made them soo many little houses to get married in. Me? Lonely? No you’re the lonely one u lawn owning freak