Treefrog: the act of throwing your body and latching onto an unsuspecting person whilst bellowing "TREEFROG". It is termed as such due to the resemblance of the unsuspecting individualrepresenting a tree that has a Treefrog clung to it. It's origins are unknown, however it is regarded as one of the intimate forms of affection.
Kadn was upset until his friend Shaun Treefrog'ed him. It made his day go from pretty shitty to "Ahh that is nice, someone loves me".
The sexual act of finding a frog, preferable a treefrog due to their slimyness, and putting your foreskin in its mouth multiple times. You then store the frog in you butthole for later use. If you are gentle enough the frog will survive and have babies resembeling the teenage mutant ninja turtles except they will be more froglike. However, they will still fight evil villains and are even better for mouth raping than the original frog.
When in a hot, humid, sweaty or tropical type climate, causing an unusually warm moist atmosphere in the crotchal region of a mans pants which creates a sticky suction type action of the penis and testicles to stick to one particular leg firmly like a tree frog.
Ie: My crotch was so sweaty after that motorcycle ride, I had a Mongolian tree frog to the right I had to pry off with a stick.