snelching

Post-snutting, when the snutter takes the snuttee's orifice into which they have just snutted and sucks back out all the juicy goodness within (snot, etc.)

Similar to felching.

"We snutted and then he wanted to snelch! What a fucking weirdo."
"Snutting's alright, but I draw the line at snelching."
"Daniel wanted to snut me again so I said alright as long as you snelch, especially after all the stains in my pants from last week's snutting."