Etymology 1
From Middle English tinken, of imitative origin. Compare ting.
Verb
tink (third-person singular simple present tinks, present participle tinking, simple past and past participle tinked)
- To emit a high-pitched sharp or metallic noise.
Jimmy heard the bells tink.
Noun
tink (plural tinks)
- (dated) A sharp, quick sound; a tinkle.
Etymology 2
knit spelled backwards.
Verb
tink (third-person singular simple present tinks, present participle tinking, simple past and past participle tinked)
- (knitting, slang, transitive) To unknit.
2012, Amy Lane, A Knitter in His Natural Habitat, page 48:Stanley knitted when he should have purled and swore, tinking the knitting back to fix the flaw.
2006, Heather Dixon, Not Your Mama's Knitting, page 89:If the stitch you need to fix is on the last or previous row, a bit of unknitting, or “tinking” as it is known by some knitters, is all that is needed to get back to the point where you can mend your mistake.
Etymology 3
Shortened from tinker.
Noun
tink (plural tinks)
- (chiefly British and Ireland, offensive) A member of the travelling community. A gypsy.
2000, David Brian Plummer, Merle: The Start of Dynasty, →ISBN, page 11:'Most have white eyes, which ain't natural in any beast, tame or wild, and they are considered unlucky - the tinks calls 'em moonpies, and most will avoid settling on farms where they are kept.
2014, Alastair Macleod, The Traveller's Tale, →ISBN:Her family had a name that marked them out as tinks, only they weren't tinks anymore.
2015, Andrew O'Hagan, The Illuminations, →ISBN, page 47:'Well, you should feel right at home,' Flannigan said. 'You love a bit of thieving, you and the rest of the fucken tinks you grew up with in the Emerald Toilet.'