A steamer that can't or won't be dismissed into the abyss known as the u-bend, for 2 probable reasons:
1. The girth of said steamer is larger than that of said
toilet, and the laws of dynamics render flushing
useless.
2. The steamer causes pleasure for the recipient, who may become sentimentally attached, and refuse to flush.
This problem can usually be rectified with a pointy
stick for both steamer and/or recipient.