Substance Bricks Edit Meaning

1. Someone who posts gay things to urban dictionary that doesnt belong, almost always about twitter (i cant stand that word), facebook, tex..

1. Someone who's acting like a complete douche bag. Also used in a derogatory sense towards ass-pilots like Elton John (gay people u r..

1. Lethal Dose, 50%. Refers to the dosage of a given drug required to kill 50% of a test population. The LD50 is usually measured in unit..