look up any word, like bukkake:
use for "Nah!" or "No!" or negative
question: can you help me on this?
answer: lan jiau!
by glyn October 26, 2003
words to represent the thing that worse, look like a cock.
tew! that sucker block my way! he like a lan jiau.

by big mummy October 17, 2003
Stupid Singaporean "Cock"
Singaporean Lanjiau was usually very small
by Ah Beng October 06, 2003