When you are about to receive a hummer from a woman with dentures. Remove both plates for the traditional Gummer or keep either the Upper or Lower plate in.
Roberta was very upfront about her dentures. Davey really wanted a gobbly. This was a no brainer because of her Teeth Optional honesty.
Adjective applied to a student who tries to get out of a summer homework assignment by "thinking" it was optional.
It rarely works but might get you permission to hand the assignment in late.
Teacher, "Where is your summer book report?"
Student, "Uhh... I thought that was optional."
Teacher, "How optionalistic of you."