Throwin shapes

exp.

Heard in Waterford and Cork

Usually in mountain gorillas, when groups come across each other in the forest, the male-male interactions are quite aggressive, involving chest-beating displays and sometimes even physical violence. Similarly, in Ireland, as a particular species of males, generally known as skangers, pass each other they display similar aggressive actions. These actions are known as throwing shapes and can involve head movements, fist movements and strange methods of walking.

In use

Jaysis would you look at the go of yer man throwing shapes over dayer. The fuppin dope!

Posh English

Good heavens, would you look at that fellow over there striking aggressive poses. The absolute fool.

Same phrase, other counties