(Noun) The 13th maneuver in genital origamy. The act of stretching ones ball sac, pulling it up, and tucking the entire genital package into the stretched sac.
(Verb) Putting ones genitals into the cacoon, hoping that in a few months, out will come a penis of butterly proportions.
After tucking my balls into the cacoon for six months, my dicks still as small as ever
when a two persons are spooning (naked) and the guy inserts his member into her rectum and leaves it there to continue spooning, untill it gets limp and it falls out( this would be the butterfly leaving the cacoon)
G and cole were spooning and G fell alseep, and cole got a raging boner, but as not to disturb the sleeping G he gave her a cacoon to avoid the awakening of G