Square (slang) - L7

L7

L7 is also a derivative term for square. This derives from a gesture in which the square shape is made by putting together an "L" made with the left thumb and index finger and a "7" made with the right thumb and index finger.

Sam the Sham & the Pharaohs included this line in their biggest hit "Wooly Bully":

Let’s not be L7, come and learn to dance.

Wings used this slang in an anti-drug reference in the song "C Moon":

It will be L7 and I'd never get to heaven
If I filled my head with glue

The Sandlot's Squints used this line to describe Smalls:

Come on, Benny. Man. The kid is a... L7 weenie!

Obie Trice in Adrenaline Rush:

"You L7 like a square be" (sic)

]'s song "Be There, Be Square" referred to L7.