What's the idea?

What's the (big) idea?

Inf. Why did you do that? (Usually said in anger.) Please don't do that! What's the idea? Why did you shove me? What's the big idea?

Name	Pronounced	Usage
Daniyyel	-	Biblical Hebrew
Thomasina	[.tɔmə'si:nə]
Jackin	-	Medieval English
Vinzent	VINT-sent	German
Matilde	mah-TEEL-de (Spanish)	Spanish, Portuguese, Italian
Amator	-	Late Roman