Occurs when a group of males in close proximity, usually friends, urinates in a non-dark area; usually characterized by the ability (whether exercised or not) of one individual to reach out and grab another's skin flute while at the same time having his grabbed.
We were having a great time on bear island until the four of us all got up to piss at the same time. I felt like we were getting up and joining a San Francisco Marching Band.
To throw some dome is to casually fellate a boyfriend, bro, or other acquaintance. Throwin' dome can be done as an act of charity, debt repayment, flirtation, or introduction, but never as an act of lust or passion.
I was pretty bummed out after I failed my second exam in a row, but when that chick saw my frowny face she decided to throw some dome my way and now I'm good to go!