What is Accommodation Paper?

Legal Definition
An accommodation bill or note is one to which the accommodating party, be he acceptor, drawee or endorsee, has put his name, without consideration, for the purpose of benefiting or accommodating some other party who desires to raise money on it, and is to provide for the bill when due. Miller v. Lamed, 103 111. 562; Jefferson County v. Burlington & M. In Co., 66 Iowa, 385, 16 N. W. 561, 23 N. W. 899; Gillmann v. Henry, 53 Wis. 465, 10 N. W. 692; Peale v. Addicks, 174 Pa. 543, 34 Atl. 201.
-- Black's Law Dictionary
Legal Definition
Negotiable paper upon which a maker or endorser assumes liability gratis.
-- Ballentine's Law Dictionary