I. snitch 1 /snɪtʃ/ BrE AmE verb informal
1 . [intransitive] to tell someone in authority about something that another person has done wrong, because you want to cause trouble for that person
snitch on
Somebody snitched on me.
2 . [transitive] to quickly steal something unimportant or of little value SYN nick British English
II. snitch 2 BrE AmE noun [countable]
[ Date: 1700-1800 ; Origin: Perhaps from snitch '(a blow on) the nose' (17-21 centuries) ]
informal someone who is not liked because they tell people in authority when other people do things that are wrong or against the rules SYN sneak :
He didn’t want to be a snitch, and besides, Kevin was his friend.