Shampoo is defined as a special soap used to wash the hair, or is an act of using a special sudsy soap to clean someone or something.(noun)
Shampoo is when you use a sudsy soap to lather something up to clean it and then rinse the soap out.(verb)
Lathering up your puppy with a sudsy soap and then washing him clean is an example of a time when you shampoo your dog.
See shampoo in Webster's New World College Dictionary
Origin: Hindi chāmpo, imper. of chāmpnā, to press, knead, shampoo
See shampoo in American Heritage Dictionary 4
noun pl. sham·poos
Origin: From Hindi cāṁpō
Origin: , imperative of cāṁpnā, to press.
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