Noun: When you tie a girl (or dude, if you roll like that) to the bed in a spread-eagle pose, and surprise anal bang them with a ball gag so that they can not scream. Also works with a rag, but the victim MUST be conscious for it to count. If you roofie or chloroform them, you're a punk bitch.
Dude, you hear what I did to the tri delt last night?
Fuckin rode the screamless eagle bro!