Refering to the chemical Taurine (bull testosterone.), in most of energy drinks (like Red Bull, Bull?! ehh ehh), but mostly refering to Monster energy drink.
When the moment is just right and the setup is A+ and you are sure everything is going according to plan the feeling you get is called Bullnut. You can't force it, it just happens. Don't be surprised if your pants get a little wet.
Utility beer is the beer you keep around for the day-to-day moments when beer is a necessity to assist in pedestrian activities (golf, plumbing, yardwork, babysitting, staff meetings, Zoom calls). For the beer snob it is the beer you save for neighbors when they drop in at 3 p.m. on a Tuesday. It is differentiated from the actual high-end beer you save for special events, holidays, and special tastings.
Person 1: Dave, did you bring along those hazy craft IPA's so we could drink while cleaning Lyle's pool?
Person 2: Nope. I just have a bunch of utility beer that Steve dumped on me. Good enough for this. It is only 10:30 a.m.