spot bill
n.— «For now, the amendment, SCA19 by Sen. Bill Morrow, R-Oceanside, is a vaguely worded document, known in Capitol parlance as a “spot bill,” that gives little indication of the magnitude of the final proposal.…“It is obviously and forthrightly a ‘spot bill,’…The general concept at this point is to set up an independent commission, to give that commission limited authority, a window if you will, to modify Proposition 140.”» —“Senate, Assembly leaders crafting plans to rewrite term limits law” by John Howard Capitol Weekly (Sacramento, California) June 22, 2006. (source: Double-Tongued Dictionary)