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Use "mech" in a sentence
"While ostensibly the pie plate would serve to prevent the derailleur from inadvertently and tragically wandering into the spokes like a Nü-Fred jumping into the Gimbels Ride, in the absence of any sort of rear mech "rear mech" is Yiddish for derailleur--the "ch" is guttural I can only assume the pie plate is vestigial."
"Then when recounting the story later the word mech was used."
"Tokyo, it turns out, is exactly as one imagines it if one learned about it from Japanese pop culture (i.e. there are actual giant monsters rampaging from time to time, ninjas, cops in mech suits, etc ...)"