1. to add alcohol or any intoxicating to a drink that does not have any when first purchased.
2.to rise to a high level quickly
3. to strike a volleyball upward so that it is more likely to hit the ground
Someone tried to spike the smoothie mix.
by The Return of Light Joker October 29, 2008
When you're banging a chick an slip out, then "accidentally" slip it in her ass while re-inserting!
That crazy bitch was was goin so buck-wild, she almost broke my dick! So I retaliated by spiking her!!!! OR.... Sorry babe, didn't mean to spike ya, but I got carried away!!!!
by JOKES14 June 28, 2011