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a group of guys on long island, who believe they have a secret society, in which they go around hooking up with (slaying)'biddies' (girls). the higher the number the high in ranking and bragging rights they have in the group. they also go by LOBS for short
"yo i can't believe how many biddies i salyed at the party last night, i cant wait till the next league of biddy slayers meeting"
by LIgirl09 April 27, 2009
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