Made popular in the 70's and 80's, "cheekage leakage" refers to female ass cheeks protuding from the bottom of small, tight shorts. Originally this was purposeful (as was long feathered hair, camel toes, and braless terry cloth tube tops). Sometimes abbreviated to the more British "cheekage".
Cindy didn't even notice the throng of prepubescent boys skating avidly behind her at the roller rink.
"Dude," Chad gasped, "if those cut-offs creep up any further her cheekage is going to make me shoot!"
Paul was hypnotized by the cheekage leakage Mrs. Tyler had on display across the street. Bending over to prune her roses, her tan lines would appear and disappear provocatively.
Chest hair on men, which is allowed to grow without shaving at the top of the chest (in any of various shapes), and shaved clean from well above the nipples down to the waistline.
A chestache allows a manly appearance in a partially unbuttoned shirt, but with a cleaner appearance below the chest whilst shirtless.
"I like his chestache, but it sure gives him a weird tan line."
"I love running my fingers through his chestache."
"His handlebar chestache is oddly appealing, but I wonder how much wax it takes to do that"