To disarrange or rumple; dishevel.(verb-transitive)
A disheveled mass, as of hair.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "tousle" in a sentence
"About 15 million people will watch her tousle that dyed blonde hair as she gamely re-enacts one of her iconic performances."
"Occasionally you will reach over and tousle her hair, or she may lean against your leg."
"My gaze focused on my lover, my heart doing a little flip at the sight of him, his hair in its familiar tousle that fell over his forehead."