finger wave
1. A type of wavy hairstyle achieved by using the fingers and a comb on damp hair. She looks so glamourous with her red lipstick and finger waves.
2. rude slang Raising the middle finger (a rude gesture of anger or displeasure) at one. What are you giving me a finger wave for, I didn't even say anything insulting! I gave my brother a finger wave after he said that he'd never seen a worse basketball player than me.
finger wave
n. the act of giving someone the finger; displaying the middle finger upright as a sign of derision. (see also give someone the finger.) The salute turned into a finger wave when the Major turned away.