Slapdash
WordNet
adjective
(1) Marked by great carelessness
"A most haphazard system of record keeping"
"Slapdash work"
"Slipshod spelling"
"Sloppy workmanship"
adverb
(2) Directly
"He ran bang into the pole"
"Ran slap into her"
(3) In a careless or reckless manner
"The shelves were put up slapdash"