Pregaming is when people get together with their friends before going out to a party or other social event. It's kind of like a warm-up or a practice before the real thing.
Usually, during pregaming, people will drink alcohol to get in the mood and feel more comfortable around each other. They might have a few drinks or play drinking games, but it's important to remember to not drink too much because that can be dangerous and make the real event less enjoyable.
Pregaming can be a fun way to bond with friends and get ready for a fun night out, but it's important to always be safe and responsible when drinking alcohol.