Stepping on someone else’s toes

When at a corner store or any business establishment, where you're trying to conduct a business transaction and somebody comes to try and interfere in your transaction trying to conduct the business of their own.

A bro why are you stepping on someone else’s toes man, let bro conduct his business transaction and you stop trying to be janky bro.

to pope someone

Unexpectedly whack someone's hand in a mix of anger and fear.

– The pope poping the believer's hand was a surprise to everyone.
– Ho my gosh, have you seen how Brian poped Alfred's hand? I've never seen him acting like this!
– To pope someone is never well received.