Factual error: When Vincent shoots Marvin the bullet goes through Marvin's head and exits out the back of his skull with explosive force - enough to splatter "pieces of brain" all over the back of the car. If it exited with so much force the rear window of the car should have shattered from the bullet, but it doesn't even get chipped.
Factual error: In The Bonnie Situation when the white kid busts out of the bathroom and empties his "canon", there is absolutely no recoil on the weapon. The gun is either a .357 magnum or .44 cal and would have a huge kick after firing. In this scene, he fires all the shots with barely any recoil at all.
Chosen answer: It's a reference to his hairstyle; A Flock Of Seagulls was a new wave band from the early 1980s who were as well known for their frontman's unusual hairstyle as their sound. You can learn more about them here: http://en.wikipedia.org/wiki/A_Flock_of_Seagulls.
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