Pat Boone -- Arrest Warrant Is Nonsense ... Who Am I, Lindsay Lohan?

Pat Boone says the arrest warrant issued against him last week is a case of misinformation, but the old guy proved he's got a good sense of humor about it ... by backing up the bus over Lindsay Lohan.

As TMZ first reported, a judge issued a warrant for Boone's arrest after he was subpoenaed to testify in a case involving a luxury condo on a cruise liner ... but he was a no-show.

Boone tells TMZ his only relationship to the ship is he agreed to be the spokesperson once it launched ... which hasn't happened yet ... and other than that he knows squat about the project.

While he fully intends to show up to court ... Boone says the litigant will "be very disappointed to hear how little I know and it won't help him in any way."

He adds, "Is this the way Lindsay Lohan and Robert Downey got so famous?"