Common word used by twitter memes(gays) it means that your tweet is fye and has potential to go viral ...usually identified

An old, delapidated worn out car or less commonly, van.
It will usually have been around the clock and will be rusty and clapped out.
Good examples of bangers are old reps cars which have been to Mars and back.
Most Private Hire Taxis are bangers and they are also used to race around dirt tracks for fun.

Any Size Pistol, Firearm

short for gang banger

In skateboarding, an extremely large or difficult trick, usually down a high and/or long obstacle.

n. Irish word for sausage. See also bangers and mash

English sausage. Usually quite long and filled with bread and pork.