Top definition
A great amphetamine. Take 3 5mg pills and you'll be up all fucking night. Tobacco smokers, watch out. I noticed that when you're on Focalin, you are honestly smoking cigarettes every 10 minutes. You feel so good on these. Your whole body just feels amazing.

Side-effects include for people that aren't supossed to take it (me): restlessness (up all night!), erectile dysfunction (you CAN NOT get a boner), decreased appetite (not hungry).
me and my friends popped 3 5mg Focalins each and we were happy, hyper, and felt good as hell!
by gangsta james June 12, 2006
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