aguantar gorro
To be the third wheel while a couple is kissing or making out right in front of you. This refers to the person who stays there while the couple is being affectionate. In the Dominican Republic, a person who is aguantar gorro is also commonly called a mexicano.
Juan goes to his girlfriend Maria's house and brings Yordano along so he's not alone. When the kissing frenzy starts, Yordano being right there makes him a mexicano, which in turn means he is aguantar gorro.
Automatically translated from Spanish
República Dominicana