A feeling usually experienced by thirteen year oldboys when bumping into or brushing past a person of the opposite sex. The pent-up sexual tension causes a sudden pulse to the cock, occasionally resulting in an awkward boner.
Tom: Yo Jon, when Jenny bumped past me in the hall, I totally felt a Cockpulse. I couldn't stand up during my entire next class!
an insult wich originates from barry in south wales u.k which is used as an alternative to, fag, queer, faggot, bumlover, poo pirate, fudge packer and so on