When it feels like everyone you know is at a bar, club, or pub, so you could do a roll call like back at school.

People may optionally call out to all their mates, lads, hoods, bros, crew, etc one by one like at school roll call.

Similar concept occurs when teachers go out at night and see all of their current or former students out at the same venue.
"Wow, everyone's here, we could call the roll."

"I went to the local bar last night but had to leave because half of my students were drinking there. I nearly had to call the roll."
by chalkie22 October 04, 2009
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