A brodaddy is a generally fratty dude who spends most of his time drinking beers and playing Wii bowling. He is usually outgoing and somewhat loud, sometimes to point of being obnoxious. Refers to most people as a bro, even girls. This is what separates him from a bro, even a sweet bro. Attire includes a collection of Vineyard Vines, Patagonia, and backwards visors. Will evolve into a yuppie when older.

The phenomenon of having to come out as bisexual to the same person/people repeatedly because they assumed or hoped that your sexuality was a "phase." Refers less to the holiday and more to the 1993 Bill Murray comedy film in which the main character experiences the same day over and over.

A bro who lives amongst other bros and breed adopted children to become athletes. In the mean time, there must be a maid in the bro daddy house who is the common sex slave. Bro-hoes are allowed at all times. the more bros, the more income resulting in nicer bro houses, thus attracting more bro-hoes. The fridge must always have beer and no feelings are ever spoken of. Arguments amongst the children are handled via boxing because brothers settle arguments that way. This is the ideal living situation for any single bro, being a Bro Daddy.