beat one's little brother:

Of a male, to masturbate . See masturbation-male for synonyms.
See Also: adelphogamy, adelphogomous, beat to it, beating fantasies, big brother, big daddy, brer, BTSOOM, bub and sis, casigamy marriage, casimeria, dead beat of one's heart, foken, Frey, kick ass, kid brother, little brother, tachycardia, warm bruder

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