When two straight men have a boner (aka have pitched a tent) for the same topic (e.g. software, vehicles, workouts, etc.) and begin to have an enthusiastic conversation (standing face to face) that could go on for hours.
Wow, Dan and Tony have been talking about programming in the kitchen for over an hour. I think they're pretty much touching tents by now.
When you pour all the backwash in the empties at a party into a bowl and drink it heartily.
Who wants to drink some beerkake!?