Meaning: 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.
First 100 words.
As you feel more comfortable with the first few hundreds of ASL signs, progress further with your vocabulary and learn signing more.