Any boy/girl that alternates between trends for indefinite amounts of time before scrapping one 'identity' and moving onto something completely unrelated or contrary to the person they were previously trying to come across as.
The idea is that they may as well just be a legohead, switching from one pre-determined body/style to the next.
A: That chick was nothing but Baby Phat and wigger'd out Marc Ecko gear last year. Then she flipped the script and went all mall-prep Abercrombie. Three months ago she ditched that, dyed her hair four colors, started eating drugs and hanging out with guys that ride BMX. Who is that girl?
B: I don't know man. Some legohead that works the sunglass kiosk at the mall.
Hairstyle that resembles the hair of a lego man.
'Raymond you legohead, get your hair cut you bender!'
The Legohead collected 16 different variants of the tarantula
A stupid person with a head shaped like a lego brick. Also homosexual.
someone with a very shiny, small, weird head and huge ass hair as if the person was raised by lions
look at that legohead
she has nice eyes but you are right she does have a legohead