TOOTHBRUSH
toothbrush
(noun) small brush; has long handle; used to clean teeth
toothbrush, soup-strainer
(noun) slang for a mustache
Source: WordNet® 3.1
Etymology
Noun
toothbrush (plural toothbrushes)
A brush, used with toothpaste, for cleaning the teeth.
Verb
toothbrush (third-person singular simple present toothbrushes, present participle toothbrushing, simple past and past participle toothbrushed)
(transitive) To clean or scrub with a toothbrush.
Source: Wiktionary
Tooth"brush`, n.
Definition: A brush for cleaning the teeth.
Source: Webster’s Unabridged Dictionary 1913 Edition