Coverall / Blackout
A 75-ball bingo pattern requiring every number on the card to be marked, usually the game's top and hardest prize.
Definition
Coverall, also called Blackout or Full Card, is the 75-ball bingo equivalent of the 90-ball full house: the player must mark all 24 numbers on the card to win. Because covering the whole card takes many calls, coverall is the largest and rarest prize in a 75-ball game and is frequently the trigger for progressive jackpots, which pay only if the coverall is completed within a capped number of calls. If the tight call limit is not met, a smaller consolation prize is typically paid instead. As the headline prize it draws players in, but it is still funded from pooled ticket sales after the operator's margin, so it does not alter bingo's negative expected value.
Worked example
A room offers a coverall progressive that pays the full jackpot only if a player covers all 24 numbers within 48 calls; otherwise a fixed consolation prize is awarded and the jackpot rolls on.
Why it matters
Coverall is the 75-ball headline prize and the usual jackpot trigger; learners connect it to the full house, professionals see the call-count gating that controls jackpot frequency.