Believingsomething to be true that is clearly not. Someone who is not thinking clearly. Used to describe someone attached to an idea which is obviously false.
Gabriel Mejia meaning he is careless and thinks about things that aren’t realistic and tries to make it into a reality in his world. He is delusional.
“No, current boyfriend, I didn’t Irish goodbye and leave you at the bar at 3:00 am to go to my exes house for a bootycall! Wow dude, you’re seriously delusional.