noun, informal coined here
MAY·ber
A person permanently in the maybe. Replies “maybe” to every invitation, keeps every tab open, never commits, never fully declines. The opposite of a decider.
“Is Dave coming tonight?” “He's a mayber. Plan for half a Dave.”
Etymologymaybe + -er, the agent suffix: the one who does the maybe, as a decider is the one who decides. The -e of maybe folds into the -er, so the word sounds like maybe said with a shrug on the end.
NoteDecider names a person by what they do, which is end the question. Mayber names a person by what they do instead, which is keep it open. It is not indecision, which is a temporary state; a mayber is a fixed type of person. You do not wait for a mayber to decide. You plan around them, which is the joke in plan for half a Dave. The family runs: a mayber is maybering, and if you're lucky, maybring snacks.
A person permanently in the maybe.
Actively dwelling in the maybe state.
May or may not bring something.
Where this string was already doing work before it was put to this use. The sense below is the coinage; the spelling is not.
An unrelated earlier sense: maybe slurred with an extra syllable on the end, as said when drunk. Same spelling, nothing about a kind of person.