shoehorn

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A smooth curved implement, often of plastic or metal, inserted at the heel to help put on a shoe.
• transitive verb To squeeze into or as if into an insufficient space.

from The Century Dictionary.

• noun Same as shocinghorn, 1.

from the GNU version of the Collaborative International Dictionary of English.

• transitive verb to squeeze or force into a tight-fitting space, with or as though with a shoehorn; -- often used figuratively.
• noun A curved piece of polished horn, wood, or metal used to facilitate the entrance of the foot into a shoe.
• noun Low, Low Anything by which a transaction is facilitated; a medium; -- by way of contempt.
• noun Low Anything which draws on or allures; an inducement.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A tool used to assist putting the foot into a shoe by sliding the heel in.
• noun derogatory Anything by which a transaction is facilitated; a medium.
• noun obsolete Anything which draws on or allures; an inducement.
• verb literally To use a shoehorn.
• verb transitive To force (something) into (a tight space); to squeeze (something) into (a schedule, etc); to exert great effort to insert or include (something).

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• verb fit for a specific purpose even when not well suited
• noun a device used for easing the foot into a shoe