Verb conjugation of "atrincherar" in Spanish

My daugther was crying all night and we did not know why. We assume that she is getting into the terrible two age and wants to give us a hard time. We love her so much and do not get upset by that.
First of all they gave me some chicken, which the mother has cooked especially for me. Well, the bizarre thing was that they did not join me while I was eating because I had a different meal.
That was a funny coincidence and she told me about some good parties on the island. I went to one these parties which was actually located in an open air bar. There were few people but everyone connected.