Used informally among friends, not in professional or formal conversations. I can't believe I stacked it in front of everyone at the park!
Pro Tip 2/3
Physical Mishaps
Refers to falling over during an activity; usually unexpected and sometimes humorous. Trying to show off, he attempted a trick but just stacked it.
Pro Tip 3/3
Regionally Specific
Commonly understood in Australia, New Zealand, and the UK; may confuse English speakers from other regions. She stacked it during the race, but luckily she wasn't hurt.