Definition: A male sibling.
Phonological variation: "L" handshape or "from 10 on the forehead to L on the hand", and a few other variants.
Etymology: This sign originally came from the compound sign BOY+SAME which was assimilated into a single sign.
Gloss: my father "have" [loc-left]one brother [loc-right]three sister.
English equivalent: My father has one brother and three sisters.