What does la tasca mean?

it means you've zoned out. or a made up place and stop watching demi lovato La La land also references Hollywood . . .

it means to "sing"

Basically ooh la la is an exclamation of surprised approval. The expression may have very strong sexual connotations, but not necessarily. It is used in America and other places to indicate approval...

It means that you like something. For example,a boy likes a girl's dress and he says "I like your dress,ooh lala."

at the (feminine) It is an idiomatic expression that means more that its literal translation. It means 'by the means of' or 'in the way of'.For example 'Chicken a la King' mean Chicken prepared in...