caricature

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

• noun A representation, especially pictorial or literary, in which the subject's distinctive features or peculiarities are deliberately exaggerated to produce a comic or grotesque effect.
• noun The art of creating such representations.
• noun A grotesque imitation or misrepresentation.
• transitive verb To represent or imitate in an exaggerated, distorted manner.

from The Century Dictionary.

• pret. and pp. caricatured, ppr. caricaturing. [⟨ caricature, n.; = French caricaturer = Sp. caricaturar.] To make or draw a caricature of; represent in the manner of a caricature; burlesque.
• noun A representation, pictorial or descriptive, in which beauties or favorable points are concealed or perverted and peculiarities or defects exaggerated, so as to make the person or thing represented ridiculous, while a general likeness is retained.
• noun Synonyms Caricature, Burlesque, Parody, Travesty. The distinguishing mark of a caricature is that it absurdly exaggerates that which is characteristic, it may be by picture or by language. A burlesque renders its subject ludicrous by an incongruous manner of treating it, as by treating a grave subject lightly, or a light subject gravely. Burlesque may be intentional or not. A parody intentionally burlesques a literary composition, generally a poem, by imitating its form, style, or language. In a parody the characters are changed, while in a travesty they are retained, only the language being made absurd. (See travesty.) In a burlesque of a literary work the characters are generally changed into others which ludicrously suggest their originals.

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

• transitive verb To make or draw a caricature of; to represent with ridiculous exaggeration; to burlesque.
• noun An exaggeration, or distortion by exaggeration, of parts or characteristics, as in a picture.
• noun A picture or other figure or description in which the peculiarities of a person or thing are so exaggerated as to appear ridiculous; a burlesque; a parody.

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

• noun A pictorial representation of someone in which distinguishing features are exaggerated for comic effect.
• noun A grotesque misrepresentation.
• verb To represent someone in an exaggerated or distorted manner.

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

• verb represent in or produce a caricature of
• noun a representation of a person that is exaggerated for comic effect