moucharder bedeutet auf Englisch

snitch [snitched, snitching, snitches]▼◼◼◼(contact or cooperate with the police)
verb
[UK: snɪtʃ] [US: ˈsnɪtʃ]

rat [ratted, ratting, rats]▼◼◼◼(to tell on someone)
verb
[UK: ræt] [US: ˈræt]

tattle [tattled, tattling, tattles]▼◼◼◻(to report incriminating information or wrongdoing)
verb
[UK: ˈtæt.l̩] [US: ˈtæt.l̩]

grass [grassed, grassing, grasses]▼◼◻◻(to inform on)
verb
[UK: ɡrɑːs] [US: ˈɡræs]