1) A slang from the 50's denoting a pervert (most always male) who likes to sniff farts or ass. The snarf will often seek out and sniff the chair/cushion or bicycle seat of someone in the hopes that they will be able to smell a trace of ass lingering from the person who last used it.
2) Sexual arousal from the smell of ass or pussy.
That perverted snarf was hanging around the school yard sniffing bicycle seats again.
Bill got an erection from the smell of dirt ass down at the nursing home.
He loves the smell of shit gas! what a fucking snarf!
(noun)
1. In reference to the fictional character "Snarf" from the animated TV series "ThunderCats"
2. May be used as a term of endearment/affection due to the character's strong sense of loyalty and unconditional love.
(Another form includes "snarfy", which can be used as a noun or adjective, not only to reference Snarf, but also one's object of affection.)
"She's become my snarf- as if I were her Lion-O..!"
"Wanna have snarfytime tonight??"