Rappers saying "Catch him in traffic" or "ill catch you in traffic" it means that while there going somewhere there going to catch them in traffic and kill them
I hear that nigga beefin with you.
Facts, lets catch him in traffic.
When one goes to collect commodities from a local deader, but is forced to stay longer than expected due to police presence outside. For example, I went to pick up weed, the police parked outside, now I stuck watching Spongebob with my dealer's kids.
Gents, I went to pick up some parts and now I'm stuck in traffic. I won't be able to attend the meeting today