Seems to me that Colgan is just another fat ugly girl in the bar. The problem is that it's about midnight and she's the only girl in the place. The youngsters have been drinking too much and she's starting to look pretty good... Till morning.
You guys will be trying to chew your arm off...
It might seem like a good idea now but I hope you don't get a disease that can't be cured with a shot of penisillin.