Made of two word : "Behn" + "loda" i.e sister's dick.
implying to the clit of one's sister....

very common slang, has lost its offensive nature, it pretty casually used amongst friends
Friend 1 : Hey look!! She's a babe man!!!!
Friend 2 : Tu bhi behn ka loda hai, kabhi nahi sudhregaa

by Delwin Lewis June 23, 2008
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