tasteless or shoddy clothes, jewellery, or ornaments

the place was decorated with all manner of gaudy tat

a tattoo

he wants to get his tats removed

give (a person or body part) a tattoo

I think you should try tatting your arms—you'll get more respect

he has been tatting up clients for the last 13 years

make (a decorative mat or edging) by tying knots in thread and using a small shuttle to form lace

she sometimes made dresses in the evening while Momma tatted doilies