(Again, this is an “only if the shoe fits” example.) : Potentially makes you sound drinky.
But if you live a lifestyle in which you do enjoy whiskey fairly regularly, then that shouldn’t be a problem; the rest of your profile is going to be so well-written and whip-smart that you won’t sound sloppy or alcoholic. (Don’t forget that I can help with that, haha.) Above you have a few examples that I made up to illustrate a point.
None of them force you really take time to think about that step, or let you fill out the other aspects of your profile while you ponder the all-important “username” field and come back to it once the creative juices are flowing. Check out this link about a JDate user who picked an icky name.
I confess I had no idea what “tossed salad” meant, but it turns out it meant something kinda kinky that did not convey what this gal intended.
In light of that, I asked a bunch of Ok Cupid users who had decent usernames if I could include them here as examples, so you can get a feel for what works well!
Also avoid awkward SMS-speak like “u” for “you” and “4” for “for.” You’ll alienate more people than you attract, even if that is in fact how you communicate in short form like text messages or casual emails. Don’t you usually wait until a couple texts in to get that lazy with someone new? All this tells me is that you’re a dude (probably) who’s named Jeremy (probably) who may or may not have been born and/or graduated and/or created this profile in 1987. So don’t just go sticking in the number of your birth year or area code or whatever.
Numbers = not remotely compelling, unless you manage to work the Fibonacci sequence in there and you’re an actual mathematician or something.
These first ones are mainly designed with a straight guy in mind. As covered in the roundup link of bad username ideas, avoid anything sexxxxy here. The sex comes later; you can’t frontload it in a username.
You WILL get laid eventually if you come off as a human and not a sexbot troll douchebag. Life is short and there are waaaay too many dudes online you’re competing with; you’ve got to find a way to stand out a bit more than this.