بتاع

Etymology
From. The initial b- as well as the development of inflections may be due to a merger with the unrelated adjective, which is used as a similar possessive marker in bordering Levantine Arabic; however, they may also have developed independently.

Noun

 * 1) thing whose name is unknown or cannot be remembered by the speaker; thingy
 * 2)  penis
 * 1)  penis

Adjective

 * : of, 's