Check the Garden
Going out for a smoke - commonly used by stoners to go out for a joint, but may just refer to a cigarette.
"Do you want to check the garden??"
Check out the garden
Euphemism used for the act of a middle aged man lustily checking out his young neighbor .
John: There's Melanie from across the street. I'm going to check out the garden.
Scott: Sick fuck
Scott: Sick fuck