Slapdash /(?)/

Slap·dash

Slapdash

adv.
  1. In a bold, careless manner; at random. [Colloq.]
  2. With a slap; all at once; slap. [Colloq.]

Slapdash

v. t.
  1. To apply, or apply something to, in a hasty, careless, or rough manner; to roughcast; as, to slapdash mortar or paint on a wall, or to slapdash a wall. [Colloq.]