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1.
to suffocate a girl or boy with a pillow or object whilst having sex with her
i am totally going to snuffocate your girlfriend after you read this
by omeba March 31, 2009
 
2.
a combined word.snuff and suffocate together meaning that you are going to snuff the other person by suffocating him or her.
yo you better back off or i will snuffocate you.
by Bar1 May 09, 2010