A spike
Spiked is when you mix alcohol with something else, like Gatorade, and you end up with a drink that’s mostly non-alcoholic, but it might also have some illegal stuff in it.
They spiked my Gatorade and I ended up dancing on a table at a party.
The spiked drink had GHB in it, and I woke up in a stranger’s house.
Spiked drinks are like the worst hangover waiting to happen.