The bee’s knees
Definition 1 of 1
Pro Tip 1/3Colloquial Usage
Typically used in casual conversation, not in formal writing or speech. 
I tried that new burger place and it's the bee’s knees!
Pro Tip 2/3Period Usage
Originated in the Roaring Twenties, might feel old-fashioned to some listeners. 
My grandma says this pie is the bee’s knees - it’s her highest compliment.
Pro Tip 3/3Positive Enthusiasm
Conveys a strong sense of admiration or enthusiasm for something. 
You have to see the movie - it's absolutely the bee’s knees!