slide rule

Used as an adjective, this means old-fashioned, out-of-date. Usually applied to attitudes.

Man, Mr. McMahon is so slide rule! Why does he always use long division, when there's a calculator right on his desk?

9👍 3👎

slide rule

a tool made up with two or three rules that are skewly and weirdly marked. Allow you to slide back and forth to get some calculations done.

NOT FOR MEASUREMENT AND PUNISHING PEOPLE WHO ARE MISBEHAVED.

Man1: OMG, what's wrong with ruler, it has too many strange marks and are almost skewed. How could someone measure stuff out of that?
Man2: Bro this is a slide rule.