an actor (usually American) or anyone attempting to an accent using an incredibly bad English accent. named after actor Dick Van Dyke's fake cockney accent in the film Mary Poppins.
"That guy is pulling a dick van dyke with that accent over there"
To preform the Dick van Dyke, the man must have their partner get on the ground up side-down, so that their ass is in the air.
The partner then, completely naked, enters the room whilst sining the Dick van Dyke Show theme song. He then trips over a nearby ottoman, thus catapulting him into the air. He then attempts to enter into his hole of choice in his partner.
Fred: Hey, you wanna come over and watch the game at my place?
Ted: Nah, I'm going to the store to buy an ottoman so I can Dick van Dyke my girlfriend.