Verb conjugation of "hincharse" in Spanish

All people held signs with names on them and on one plate I saw name, of course misspelled. I went with the person to his oldtimer car. We drove to his cottage and I was surprised about the nice reception.
We all know that the consequences are awful. All are struggling, some kill eachother, mostly for really foolish reasons. They are not aware of it. Drugs should never be tolerated in any country.
On the way we met a nice village girl which tried to sell us some souvenirs. We told her that we would not buy from her. Her English was excellent, and we did not believe that she was twelve years old.