tu inventarti

to make up, to think up, to invent you

→ inventare
invent to invent, to make up + ar Infinitive + ti you, to you
verb · 2nd-person informal Rare #41,635
to make up, to think up In this meaning, -ti is part of the pronominal verb inventarsi and usually isn’t translated as “yourself.”
IT: Non devi inventarti una scusa.
EN: You shouldn’t make up an excuse.
to invent you Here, ti means “you” as the object of inventare.
IT: Nel mio romanzo posso inventarti come personaggio.
EN: I can invent you as a character in my novel.
Conjugation of inventare

Non inventarti scuse!

Don't make excuses!

— 哪吒之魔童降世 (2019)

Io non faccio il buffone alla radio, quindi domani non inventarti niente!

I don't play the fool on the radio, so don't make anything up tomorrow!

— Il quinto elemento (1997)

Se non ci fossi tu dovrei inventarti.

If you didn't exist, I'd have to invent you.

Se tu non esistessi, Jules, non dovrebbero inventarti.

If you didn’t exist, Jules, they’d have to invent you.

— Diva (1981)

Se vuoi, puoi pure inventarti una nuova personalità.

If you want, you can even make up a new personality.

— The Way He Looks (2014)