When your hand is down your girlfriend's panties and your mom walks in.
Got cockblocked by mom last night. Amy said she was ready to go all the way, but she went home instead and I got grounded. I might be a virgin for another week yet.
By MrKapper Is Back
A device used by fat girls to prevent their hot friends from going home with you.
John was about to go home with some hot blonde until her fat friend cockblocked him and went home with her instead to eat candy bars and watch the Tyra Banks show
By TheFrost
A person who blocks the action of a guy trying to make a move on a girl.
**sitting on the couch** Dave: Hey hallie, your very pretty. Hallie: why thank you. *dave leans in to kiss her* *sarah walks in & sits in the middle of them* Sarah: hey guys! nice night? yes? Hallie: WHY ARE YOU COCKBLOCKING?
By hahhahh hallie.
To interfere with a male's attempt at talking to a female or the other way around, especially if it involves sex. This is mainly performed by obstructing the path between the male and the female. Normally, the person that's doing the "cockblocking," has the intention on talking to the male/female.
BABY MAMA: I'm talking to this guy now name Terrence. He's a nice and comical guy. BABY DADDY: You gonna have to cut that man off, I don't care if he's nice or not, he better not be in the picture. BABY MAMA: Oh, now you wanna cockblock for the simple fact that I moved on without your sorry ass.
By Mr. Terrence L. Trezvant
What Harry Potter does everytime he sees Ron and Hermione together
Harry Potter: They Boy Who Cockblocked
By mgemfp208