Verb
stack it (third-person singular simple present stacks it, present participle stacking it, simple past and past participle stacked it)
- (slang, chiefly UK) To fall over; to topple.
2006 October 7, glitterfairy, “How long should a sprained ankle take to heal??”, in Dance.net, XP.COM, retrieved 2020-11-17:[…] as I was stepping down, put my foot into a dog-made hole and once again, totally stacked it onto a sickled ankle. This one HURT and I was yelling and screaming for a good few minutes […]
[2010 November 28, “By ‘ek, it’s ‘ot (and more kite surfing)”, in Charlie's World, retrieved 2020-11-17:She did a close fly by (which, of course, I wasn’t ready for) but I did get a few shots before she stacked it and came back for a chat.]
2016 June 19, Tom Williams, “Watch Justin Bieber Stack It, Fall Off Stage While Fixing His Pants”, in Music Feeds, Evolve Media, retrieved 2020-11-17:Bieber’s Saskatoon stack comes after he stacked it during a fist-fight in Cleveland which was caught on camera earlier this month
2017 May 10, bomberH, “Memory Lane... Pleasure Rooms”, in Spurs Community, retrieved 2020-11-17:One of the guys ran off the stage as soon as the woman put on a strap on and he stacked it as he tried to get away.