Top Definition
A course (usually academic) where a high/moderate grade is easily obtainable without much effort placed in studying, class attendance, assignments, or care. In it's extremity, a slack course do not require the previously mentioned.

Slack courses are usually used by students who wish to improve their academic averages, earn easy credits, do other assignments/studying whilst in a classroom environment, sleep mid-day, stay at home.
You should take Human Relations 101, it's a slack course where all you have to do is talk members of the opposite sex.

I took a slack course right after lunch so I can get of sleep before Organic Chemistry.

Modern Musicians is the slackest class ever, you write about Lady Gaga and get an A.
by The hardest button to button February 05, 2010

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