When bros. are going to some event, chances are they are running behind. This is called lambda time. In most cases, the bros can arrive anywhere from 15 minutes to an hour of when the actual thing started.
"What time is the meeting at?"
"It starts at 9."
"Oh shit, it's 9:10."
"We're running on Lambda time."
"Oh alright, so we got plenty of time to get there."