What does this mean in french tu t?

"Tu t" on its own doesn't have a meaning in French. It's a fragment of a phrase, and the meaning depends on what comes after the "t".

Here are some possibilities, depending on the context:

* Tu te...: This is the start of a reflexive verb. The "te" is the reflexive pronoun, meaning "yourself". Examples:

* Tu te laves. (You wash yourself.)

* Tu te lèves. (You get up.)

* Tu te sens bien. (You feel good.)

* Tu t'es...: This is the start of a reflexive verb in the passé composé. The "t'es" is the contraction of "tu as" and the reflexive pronoun "te". Examples:

* Tu t'es lavé. (You washed yourself.)

* Tu t'es levé. (You got up.)

* Tu t'es senti bien. (You felt good.)

* Tu t'en...: This is the start of a phrase with a reflexive pronoun and the preposition "en". Examples:

* Tu t'en vas. (You're leaving.)

* Tu t'en fous. (You don't care.)

* Tu t'en sors. (You're getting by.)

Please provide the full phrase or some context so I can give you a more accurate answer.