What does 'titi' mean in French?
Titi is a slang word that means "girl," as in "Tu vas être une vraie titi parisienne" ("You are going to be a real Parisian girl"). Note the difference between this and Tatie (Auntie), as in, "Dis bonjour à ta Tatie Anne" ("Say 'hello' to your Auntie Anne"). In Québec:
If used in "en titi", for example: "il allait vite en titi" ("He was going very, very fast"), it then means "a whole lot." It's kind of a slang to say "damn..."
He was going damn fast etc..