A group of two or more people blocking the aisle in your favorite retailer.
I really wanted some Ruffles but there were a bunch of Isle Blockers in the way, so I went to get some aluminum foil first.
Any device, either passive or active, that provides protection from Credit Card skimmers while your cards are inside your wallet.
I hate credit card sleeves so I just put a wallet blocker in my wallet to prevent skimming and wireless theft.
The best thing in the universe
Guy 1: damn i dont want pornhub or porn sites appearing
Guy 2: then use a porn blocker
The act of stopping a female friend from pursuing a love interest.
The female version of cock-blocking.
Oh my god, I was out with my girlfriends and Becky totally knicker-blocked me.
That Becky, she's such a knicker-blocker.
Another word for a tampon.
Hey Jess, My blob has arrived...got any blob blockers?
A very tight pair of underwear for men that prevent a male from getting a full erection
This girl had on some tight yoga pants at the gym , I couldn't take my eyes off of dat ass. I was getting horny and didn't have boner blockers on so I had to get out of there quick!
A person who only looks attractive a half block away.
Bill: "Drive closer so I can pickup up that fine chick.Whoops, never mind, she a half a blocker."