first year

First years is the collective term given to first year secondary school students, typically in Ireland. Usually aged 11/12, they are seen as innocent and naive compared to their fifth or sixth year schoolmates, and are at the bottom of the school food chain.

Older Student: Jesus look at all the first years, the size of that one's bag. He's as green as grass! He won't last ten minutes in Ms. Smyth's class.