Walking head is when an extremely tall man dates an extremely short woman (That's head is near his happy "head") so, the girl would not have to get on her knees to get the job done.
Friend #1: Wow! Look at that couple. He's so tall, and she's so short!
Friend #2: I know! She could give him walking head!
Friend #2: I know! She could give him walking head!
by Short-Girl November 15, 2010