To make a truly serious, solemn promise that you later casually announce you didn't mean, hadn't thought out properly and now have no intention of keeping.

After UK Lib-Dem MP Nick Clegg circa 2010
I've made a cledge to my missus that I won't smoke any weed on my stag trip to Amsterdam
by walrus face November 17, 2010
“bro we’re fucking with timmy and not telling him what cledge means.”
“dude that sounds like fun.”
by LilChromie June 12, 2019
To burn in a mustache above someones belly button forcefully
Joey you inept indigenerate underhuman, CLEDGE!!!
by Step lupid April 23, 2021