If a guy's schlong is getting prolonged, you can tell that he's ENjoying something.
If you want me to build this building correctly, you'll have to prolong the deadline.
to lengthen or extend (the life of a sick person)(the deadline) (your stay in a hotel). Also, to procrastinate. More used with time than physical length.
extension or prolonging, in time. Also means,to extend a linear thing by building it longer. A bit more official than the related term 伸ばす (のばす).
to outlive others, to survive a fucked event