I think it is too funny and too graphic. The sense of 'language' is lost. How about 'Flaunt your Fluency'?
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.
Eugene ErmakovI'll use yours, if you only you allow.Of course—but keep your eye open for a better idea. I'm not a marketeer.
Mister Micawberkeep your eye openI am one big eye from now on!
Eugene ErmakovDon't zip it up!This sounds very rude indeed—it seems to refer to one's trouser zipper.
Eugene ErmakovUnzip your lips!This one is better, but may refer to revealing a secret.