Used in colloquial speech (at least among people I know) to refer to someone whose sexual orientation is ambiguous.

Ques"tion*a*ble (?), a.

1.

Admitting of being questioned; inviting, or seeming to invite, inquiry.

[R.]

Thou com'st in such a questionable shape That I will speak to thee. Shak.

2.

Liable to question; subject to be doubted or called in question; problematical; doubtful; suspicious.

It is questionable whether Galen ever saw the dissection of a human body.T. Baker.

Syn. -- Disputable; debatable; uncertain; doubtful; problematical; suspicious.

 

© Webster 1913.

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