look up any word, like swag:
 
1.
A Block Party
Saturday night Blocko! BYOB.
by Anonymous August 20, 2003
 
2.
Hash; the resin of the marijuana plant.
"Got some blocko in Morocco."

(The Goldie Lookin' Chain - Ambassador)
by Padster August 19, 2004
 
3.
1.) A sexual virgin.

2.) A sexually repressed individual.

3.) A "man" who buys tampons for his "friend with benefits" while every other cock does her like there is no tomorrow.

4.) Jan, a male with a female name.
If you don't ravage that chick, I'm gonna have to call you Blocko.

You're suck a Jan.
by Anonymous March 28, 2003
 
4.
a misunderstood forum user. Who's love for the ladies is only bested by his love for the inhebriating substances.
Blocko is great in bed
by Anonymous March 28, 2003
 
5.
See Snowballing
Hey, i just snowballed that guy
by Anonymous March 28, 2003
 
6.
A slang term for man-on-man anal sex.
I love fucking him bareback, it's the best sort of Blocko out there!
by peach March 28, 2003