Squaddy matress Share definition Flag A squaddy matress is a girl who's slept with more than 5 members of our lovely armed forces. General slag, scally and chav. "That Laura is a right squaddy matress she's shagged 17 of them!" Squaddy matress by ali December 8, 2004 0 0 Get merch Get the Squaddy matress mug. Buy Now — $32.95 See more merch