This means she likes to bob her head up and down....

Urban Dictionary: http://www.urbandictionary.com/define.php?term=chicken+head 1. chicken head Background: used primarly in male circles, with strong ties to hip-hop culture. often used in rap music to describe groupies. Definition: NOUN 1 a girl or woman who seeks attention from popular males with high levels of status exemplified mostly by musicians or popular/wealthy boys or men from a poorer neighborhood, by submitting to sexual favors with little or no pressure. 2 a girl or woman who is passed around from one male to another in short term, exclusively sexual relationships. 3 term for a girl or woman similar to "groupie" though the fame aspect may or may not be absent. whereas a groupie is partial to a particular band or person, the chicken head may be indiscriminant in choice and frequently chooses boys or men from her neighborhood or school. 4 female suffering from low self esteem who prostitutes herself for short lived friendships or attention. VERB 1 to perform oral sex on a male or males indiscriminatly or in succession. 2 to suck or the act of sucking dick. 1. rappers need to stay away from those skeezin chicken heads. 2. that bitch chicken heads everybody! by f9dyn Jun 7, 2004 email it 2. chicken head 255 up, 79 down When girls perform oral sex on a guy their heads bop up and down like a chicken. Refers to girls who can do the job FAST. Also refers to girls who give blowjobs to anyone. JOE: I'll let that chicken head blow me anytime! BOB: Pass that ugly bitch around then! JOE: I'll hook you up guy. She'll blow anyone.

Krystal Smith of Covington

A chicken head is that girl standing on the bus stop sucking on a lollipop. She is usually dresed in the lateset flea market couture and designer knock offs. She has a bad attitude. The ncek roll and the "talk to the hand" are her primary gesticulations. She personifies 'baby mama drama'. She is a broke, happy, carefree and ghetto-fabulous and genuinely does not give a damn.