Translation of mamar

for a minute I blamed the burger that I had eaten at the duty free back in Cancun, but thinking a little further I recalled eating street food the night earlier, as it was Mexican independence day.
It was a very cute version of Star Bucks and had a great blend of Mexican coffee. They also had very special cakes and other kind of deserts. I sat there for a while and read a local newspaper.
I made plans to visit a surfing contest with a girl that I have met on the first day. We agreed to meet at ten in the morning at her place. I couldn't keep my eyes open and decided to quit.