One whom decreases the level of banter in the room for they themselves do not enjoy the banter. And in doing so sucking up all the banter ergo A Banter Hoover.
A cheap pair of non-designer sun glasses that can be tossed around, dropped, scratched, or lost. These glasses can be found at gas stations, flea markets, or events like Warped Tour. One of the most popular styles of beater shades are imitation Ray Bans made of cheap plastic with neon colored arms, usually given away as freebies at concerts.
I'm just going to bring a pair of beater shades to the beach, I always loose them anyway