seven-head

It comes from chinese.
It is a nounalways Single
FormalSeven-head is another term of idiot.It is more polite than just saying that you are idiotic.
P.S. It is different from Hot-head

RightThey are seven-head
WrongThey are seven-heads
They have seven-heads

by Tony Chan September 11, 2004

seven heads

seven heads means an idiot with a stupid hairstyle

Chan Tong is a seven heads

by Brian@lsc November 28, 2018