Perhapples is similar to saying "yes, duh." It is often used when someone asks a question with an obvious answer. It is synonymous to "maybe" when it is said in the tone "mayyybeee."
For example: You are eating ice cream and you sibling asks "are you eating ice cream?" and you respond, "Perhapples" and proceed to finish off the ice cream in front of them.
perhapsies - a sophisticated method for attempting to knowingly flake / cancel plans with a person.
* makes tentative plans for a cocktail knowing you'll probably not show* She said, "Perhapsies, I will join you for a Scotchtomorrow night" (as she thinks - 'not really').