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Webster's Dictionary (1865)

Rile, v. t.

verbtransitive

[imp. & p. p. RILED; p. pr. & vb. n. RILING.] [See ROIL.] [Prov. Eng. Colloq. U. S.]

  1. To render turbid; to stir up; to roil.
  2. To make angry; to vex.

☞ The proper orthography of this word is roil; but rile is not uncommon, especially in colloquial and humorous language.