The (usually) triangular tuft of hair just below one's lower lip.

Known also as a 'jazz tuft' or a 'soul patch', or more often 'that bit of beard just under your lip', the jazztache is the only part of a beard that can be grown without a moustache without making you look like a religious Belgian.

WARNING: Growing a jazztache may brand you as either a 'stupid hippy' or a 'jazz nerd'.

Jazztaches MAY be a sign of evil-twinhood in the same way as goatees. The primary difference is that the jazztache is far harder to spot.

You have been warned.

For those who asked: It is pronounced the same as 'moustache' only with 'jazz' instead of 'mous'. Dead easy.