Besides being a band a Placebo is also an ineffective dose masquerading as the real thing.
Although what the 'real thing' is, is subjective.
In Biology....
Amanda: "Hey Lu, what is a placebo?"
Lu: "An ineffective dose masquerading as the real thing"
Amanda: "Masquerading eh?"
Lu: "Yep"
Amanda: "Kay, Thanks"
by The Mighty Belthazor February 9, 2010
The message you toke last night was placebo
by Coopk September 26, 2017
1: an ineffective substance that is given to someone who thinks it will have a physical effect on them. Psychology dontcha know...
2: A band that makes the most sublime music i have ever heard. Beautiful, thumping basslines, spine tingling vocals and shuddering guitars....mmmmmm
1: A Placebo was administered to patients in an experiment to see if their illness was psychological or physical
2: My god Brian Molko is one sexy bitch......*goes over all schnoogly*
by Pretty Vacant May 14, 2004
A truely spiffing band. Sadly, people only seem to take notice of the sexy lead singer, and not the other two sexy members! They are friends with David Bowie, which makes them even cooler. Look out for the bassist's dance moves, they rule.
Oh my, when I saw Placebo live I was about two feet away from Stefan's hips *drools*
by Naomi June 27, 2004
Gorgeous music, gorgeous lead singer....

related word: all the best ones are gay
Days before placebo came, freezing cold and empty...
band that have the best music and beats
every you and every me
the bitter end
by William Gates February 5, 2005