In soccer slang, this refers to marking an opponent closely during training, staying right on them to limit their space and options without actually trying to steal the ball.
It is the feeling of being overwhelmed or the pressure caused by responsibilities, whether it is from a high-ranking position, a job, or even household chores. All of this causes tencion, which is what leads to feeling pressured. (In the Dominican Republic, this describes the stress or mental strain resulting from fulfilling various duties).
Cleaning, being president, governor, or mayor, all those things that we know stress us out, all that is what overwhelms us and turns into tencion.
A person who is seen as a square or a buzzkill because they do not give in to peer pressure, resulting in their friends viewing them as boring or out of the loop.
You are such a quedao, supposedly working instead of taking a long weekend.