Top Definition
A term commonly used amongst recreational drug users to describe an extremely potent form of the tranquiliser ketamine. The effects of large intakes of this substance can range anywhere from a desire to listen to extended periods of fleetwood mac, sitting around in cardboard boxes, and inevitably, getting lost in the k-hole. Watching people partake of Bulletproof Ket is, prehaps not unsurprisingly, a great deal of fun.
Did you see Nik after his third line of that Bulletproof Ket? I've never seen someone having it out with an imaginery bathroom dwarf before.
by Ketaloco February 12, 2007

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Your favorite word on a white mug.

Create a mug

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug

The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

Buy the t-shirt

The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt