Slang for Provigil, the brand name for the remarkable prescription drug Modafinil. Modafinil erases fatigue and keeps you alert, but it's not addictive, it's non-toxic, it doesn't trigger psychosis, and most remarkably, it has no recreational value. It even has no hangover. For that reason, it is a perfect companion to coffee and cigarettes when you've got to death march all weekend because you played XBox all week and blew Friday's deadline. Also known as daffodils.