The Kickstand Effect often happens in the middle of the night. When still groggy from just waking up, males will often turn over to their other side. Not realizing they have morning wood from just waking up, their penis will get in the way and bend, causing extreme discomfort.
A kickstand trip is when a couple of friends are walking together in a group, and one person is behind another, and he/she who is behind the other person, proceeds to kick their leg outwards in the same fashion, you kick out a kickstand on a bike.
Rusty Kickstand - verb. When a gentleman is getting a blow-job from behind while laying prone on his stomach... preferably combined with ass play. Easily transitions into a "Rusty Trombone".
i.e. My girl was giving me a massage last night and she transitioned into a Rusty Kickstand like a champ!