A wistful or excessively sentimental yearning for return to a past period with your bro or bros.
Dude: Yo, let's steal the napkin-holder from this bar.
Widowed-Bro: . . . nah (disappointedly turns away)
Dude: You alright man?
Widowed-Bro: . . . (Thinking about a time he and his bros took a road trip to New Mexico and stole a horse-cop's horse and used it to commandeer an oxen and 12 hundred dollars worth of cattle)
Dude: Dude!
Widowed-Bro: Sorry . . . just thinking about this thing me and my bros once stole
Dude: You need to stop being so brostalgic and live in reality.
Widowed-Bro: I can't help my brostalgia. I loved Ted "T-Killa" Jones. He was my main bro . . . Goddamn it! I told him not to play 13 consecutive games of Flip Cup with Everclear grain alcohol. (A single brostalgic tear rolls down his cheek)
He is arguably the worlds greatest at everything. Not only is he funny, good looking, fertile, and smart; but he has the ability to fly at super speeds. Boostaloo is used as a handle for many message boards and characters, but in reality comes from a nickname given to him by his father. He can be recognized by his signiture elipsis at the end of his posts.
Like sisstalk. When you go online to find information in profiles, etc. about what's going on in your brother's life because it's easier than picking up the phone and calling him.
Jane: My brother bought a new car.
Jenn: You called him?
Jane: No, he never answers his phone. I just brostalked him.
bar hopping in order to casually end up in the place where you plan on finding the guy/girl you've been trying to find all night- as inconspicuously as possible.
"man, he's being so sketch. let's go barstalking to see what he's up to and who he's with."