Used when a social gathering or situation starts getting exciting and people get really hyped up. It describes the moment the atmosphere comes alive and everyone gets into a festive party mood (in Colombia, a rumba is a party or night out).
The party was really boring but as soon as they put on salsa, everyone se prendió and nobody sat down again.
To join in on a plan or agree to participate in a group activity. It describes the act of saying yes to an invitation or signing up for an outing. (An asado is a traditional Argentine social event centered around a barbecue).
We are organizing a barbecue for Sunday at noon, let me know if you te prendés so we buy enough meat.
To tag along or join a plan, activity, or group on your own initiative, even without an invitation. It is inserting yourself into a situation without being formally asked (a boliche is a common term for a nightclub in Argentina).
We were about to head to the boliche and, even though nobody said anything to him, Lucas's cousin se prendió right away.
Refers to the moment a person starts feeling the effects of alcohol and enters an initial state of tipsiness or excitement. It is that middle ground where the drinks have gone to your head and you start to get lively (aguardiente is a potent anise-flavored liquor popular in Colombia).
We had only been at the party for half an hour and Juancho was already PRENDERSE after the first few shots of aguardiente.