The extra wrinkly folds as obtained from having such conditions as Hound Dog Syndrome (HDS) are wrapped around the penis and used as a fuck toy. The penis is thrust into the surrounding flab of skin, usually with some form of lubrication, either saliva or artificial lube.
"That fucking ex-fatty Sarah was giving me terrible head, so I flap trapped the fuck out of her."
A "human" that spends so much time playing video games that their posture is level nerd neck. Everytime anyone goes tryhard they hunch down and their neck gets longer there fore a nerd neck is always hunched down cause they're always going try hard. In other words a nerd neck is a try hard, since their neck is 100% longer than the average human being due to playing too many video games and taking them serious, nerd necks are not even considered human anymore but something more sad. Nerd necks are often found on fortnite, their natural habitat usually being tilted towers.