(adj)(v) to speak as if one had a retainer
in their mouth which in turn causes all "s" sounds to be pronounced from the back of the mouth with the tongue never touching the front teeth...resulting in a gathering of spit
for a modified "sh" sound, possibly showering the recipient of the retainer voice in the speakers spit. often embellished for comical effect by using key terms such as geez louise gosh
1. (sh)ally (sh)ure is(h) (sh)uper p(sh)yched (sh)e (sh)ells (sh)ea (sh)ells by the (sh)andy (sh)ea (sh)ore.
2. Do you know what would make that story actually funny, repeat in your retainer voice
3. Man, I hope he doesnt think any less of me after hearing my retainer voice.