0 past simple and past participle of snitch
1 to secretly tell someone in authority that someone else has done something bad, often in order to cause trouble:
She thought I'd snitched on her.
UK He snitched to my boss that I'd been making long-distance calls at work!
2 to steal something:
We can complete it step by step however long the road is and it can't be completed however short the road is if you don't even mark your footprint.