toothbrush moustache
style of moustache which are vertical (or nearly vertical) rather than tapered, giving the moustache hairs the appearance of toothbrush bristles
en-US/ˈtuθbɹəʃ ˈmʌˌstæʃ/
en-GB/ˈtuːθbɹʌʃ məˈstɑːʃ/
style of moustache which are vertical (or nearly vertical) rather than tapered, giving the moustache hairs the appearance of toothbrush bristles