This expression belongs to street slang and is commonly used by young men to praise a young woman over her heavenly figure while trying to trigger a conversation. Very close to "Chou Hal Jassad Ya 2assad".

Sample Conversation:

Person 1 is a young pretty lady walking out of a coffee shop to her car.

Person 2 is a young man with not much to do on his free time riding an old BMW. Follows the young lady to her car and puts his head out the window:

Person 2: "7elo Jesmik, Chou 2esmik?"