With apologies to REO Speedwagon, and in tribute to E. Gary Gygax, who believed that the entire room should be against you…

I can’t fight this piercer any longer
And yet, it clearly will not let me go
Its grip upon my innards has grown stronger
And the danger that I’m in is gonna grow
Cause the piercer was itself stuck to a lurker
Above, and it is coming down below
And it’s bringing with it some darkmantle buddies
And my hit points are about to reach zero…
But even as I stagger, I keep the priest in sight
He’s got some healing magic, and we just might win the fight
But he’s backing out the doorway, running off in fright

And I just can’t fight this ceiling any more…

References

http://www.toplessrobot.com/piercer.jpg
http://codinginparadise.org/images/lurkerabove.jpg
http://www.d20srd.org/srd/monsters/darkmantle.htm

(This was done in about 10 minutes, once the wretched pun hit me, so it might not be up to Weird Al standards. Pay me what he gets, and you get work of his quality. Pay me nothing, and you get this.)