Involuntary payment
Black's Law Dictionary · Henry Campbell Black, M.A. · 1910
Black's Law Dictionary
One obtained by fraud, oppression, or extortion, or to avoid the use of force to coerce it, or to obtain the release of the person or property from detention.
Parcher v. Marathon Co.unty, 52 Wis. 388, 9 N. W. 23. 38 Am. Rep. 745; Wolfe v. Marshal, 52 Mo. 168; Corkle v. Maxwell, 6 Fed. Cas. 555.