Definition of sagger:
(n) :
(slang) A young male who wears trousers very low on his hips, exposing underwear and/or his buttocks or lower abdominals.
(n) :
Alternative form of saggar. [A ceramic container used inside a fuel-fired kiln to protect pots from the flame.]
(v) :
Alternative form of saggar. [(transitive) To place in a saggar.]