n. a difficult introductory college course designed to get rid of the weaker students; a course meant to weed out the weaker students. : Don't get into the morning section of the course. The prof is tough and thinks it's supposed to be a weeder.
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition. Copyright 2007. Published by McGraw Hill.
Cite This Source
[wee-der] 
dər