toucher le jackpot signifie anglais

hit the jackpot▼◼◼◼(to receive a favorable outcome, by luck)
verb
[UK: hɪt ðə ˈdʒæk.pɒt] [US: ˈhɪt ðə ˈdʒæk.ˌpɑːt]

make a killing▼◼◻◻(to win or earn a large amount of money)
verb