look up any word, like jamflex:
 
1.
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
 
2.
Stupid Singaporean "Cock"
Singaporean Lanjiau was usually very small
by Ah Beng October 06, 2003
 
3.
use for "Nah!" or "No!" or negative
question: can you help me on this?
answer: lan jiau!
by glyn October 26, 2003