My car won't start, leave it.

My wallet was stolen, leave it.

I went to Barbie's house last night and had to leave it in and leave so I could go out with the boys.

dont leave or ill cut u

When you've finished having some good sex and the guy just doesn't wanna get out of you and leaves his dick inside. Can also be used to express 'leave it in music' i.e hot steamy RnB tunes that you just have to make out too.

Dr. Dre: Still puffin' my leaves

I should be leaving any moment now.

Just leave me alone!