Smoke Yourself A Spare Chromosome Edit Meaning

1.

To smoke weed until you're retarded, as Down's Syndrome is cause by the presence of an extra chromosome.

Chich : We finished a quarter ounce between us last night, man. I think I'm still kinda faced.

Chung : Shit son, you don't watch out you'll smoke yourself a spare chromosome.

See weed, puffin, smoke, retarded, stoned