What does いらいらする mean?

Question

(いらいらするのいみは何?)

(I heard it means something like frustrated. Is this correct? If not, how do I say "frustrated")?

Answer 1

いらいら (iraira) is the verb "getting nervous" or "getting irritated." する (suru) is "to become." So the whole thing would mean "becoming nervous or irritated."

破ける or やぶける (yabukeru) is "to be frustrated" and へろへろ (herohero) means "terribly frustrated."