graybacks [Slang] lice.
heron any of various wading birds with a long neck, long legs, and a long, tapered bill, living along marshes and river banks.
"he's eatin' raw eggs" refers to the notion that eating raw eggs increases sexual performance.
hoosegow [Slang] jail.
"in the pitcher" "in the picture;" here, meaning in the movies.
in the ring in the sport or profession of boxing.
