Use the whole word.

[sally]

Or evs as my son says.

Perhaps you should be talking to your son about this little problem and not us. Tell him he sounds like a retard or in his language a re-re, that should take care of it.

Really Sally? You think I should talk to my son about proper language? That never occured to me.

Well it should have occured to you because having the little sucker running around saying "evs" instead of whatever isn't kosher. In fact it's downright stupid. Some kids are followers and can't realize for themselves that it's ridiculous, they need a parent to point it out. Obviously you're not doing a good job.