the graceful art of watching hot girls, or bids, in public. This is typically a collaborative activity that is done with a fellow bro and teamwork is strongly encouraged between fellow bidwatchers in spotting bids. This can be done pretty much anywhere; Starbucks, the mall, the student union, a restaurant, or even on your front porch.
"Yo dude, trying to ditch class and do some bidwatching in the cafe?"
"Sorry I'm late to the meeting, I was doing some bidwatching by the pool and got sidetracked"
"I do so much bidwatching I'm thinking of joining the NBL- National Bidwatching League"