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1. blelch
A blelch or blelching is the act of burping into someones orifice (anus or vag) thus filling it with gas. Then it is up to the person with the burp filled cavity to expell it at their leisure, usually right back in the blelchers own face therefore completing a full blelching cycle.
"Oh my days, she stank like week old blelch"

"Biff and Chip are blelching"
2. Feltch
When a man cums in a womans/mans bum and then sucks the cum out. Lots of Gays do this but men and women do it to
heard in eminems song 'Insane' - Dont you know what feltched means? ye. Well then tell me would you rather get feltched or do the feltching, fuck 'em in the arse and suck the cum out while you're beltching, burp blench and go back for a second helping.

Last night i wanted Mason to feltch me, he was like errrrman! bun/fuck that, but we did it anyway hehe

Heard you feltched that new girl, yeman ' ;)
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