emu

the way in which one walks with straight legs when under the influence of alcohol and XTC, usually at a rave or festival

i think jimmy flipped out, he's doin' the emu... somebody get him a lolly-pop

posuer

Someone who "jumps on the bandwagon" or, pretends to be something they aren't because it'll make them cool and/or popular. It's not labeled specifically to any one type of person. (i.e. not all posuers are trying to be goth or punk)

Avril Lavigne is a posuer, she acts punk because its the cool thing currently.