slapdash

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

• adjective Hasty and careless, as in execution.
• adverb In a reckless haphazard manner.

from The Century Dictionary.

• In a sudden, offhand, abrupt, random, or headlong manner; abruptly; suddenly; all at once.
• Dashing; offhand; abrupt; free, careless, or happy-go-lucky; rash or random; impetuous: as, a slap-dash manner; slap-dash work; a slap-dash writer.
• noun A composition of lime and coarse sand, mixed to a liquid consistency and applied to exterior walls as a preservative; rough-casting; harling.
• noun The outside plaster filling of a half-timbered house, between the beams.
• noun Offhand, careless, happy-go-lucky, or ill-considered action or work.
• noun Violent abuse.
• To do in a rough or careless manner.
• To rough-cast (a wall) with mortar.

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

• transitive verb colloq. To apply, or apply something to, in a hasty, careless, or rough manner; to roughcast.
• adverb colloq. In a bold, careless manner; at random.
• adverb colloq. With a slap; all at once; slap.

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

• adjective Done hastily; haphazard; careless.
• adverb In a hasty or careless manner.
• adverb Directly, right there.
• verb colloquial To apply, or apply something to, in a hasty, careless, or rough manner; to roughcast.

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

• adverb directly
• adverb in a careless or reckless manner
• adjective marked by great carelessness