Belft is the dried up white substance found on a girl's panties the next morning. Or the consitrated white creamy substance found on a girls panties right after taking them off to hook up.
-I "belft" on my underwear.
-He scraped the "belft" off her underwear while she was sleeping so he could sniff it the next day
- I was so embarresed, last night right before we hooked up, he stood on my panties and the "belft" made them stick to his foot.