*note* many people who climb in gyms buy carabiners that aren't real, and are stamped with the words "do not use for climbing, you will die." they then proceed to flaunt copious amounts of these keychains on backpacks, purses, water bottles, etc. while calling it a biner cos they think it sounds cool. they will often pronounce it "bine-er" due to being incompetent fools.
ooh, look at my biner! i climb at the ymca. i don't know what limestone is.