rampant /ramˈpənt/

1. Rearing
2. Standing in profile, on the left hindleg (heraldry)
3. High-spirited
4. Fierce
5. Unrestrained
6. Unchecked in growth or prevalence
7. (of an arch) having springers on different levels

• out of the window
• out of the wood
• out of the woods
• out of thin air
• out of this world
• out of time
• out of touch
• out-of-town
• out of training
• out of true
• out of tune
• out of use
• out of warrant
• out of whack
• out of whole cloth
• out of work
• out-of-work
• out on a limb
• out on one's ear
• out on one's feet
• out out the window
• out-over
• out-owre
• outpace
• outpaced