The observation of a girl's underwear, hopefully a
thong, that is sticking out of their pants. If its in the back, we call
'er the regular 'peaker.' For the front, see
frontal peaker
"Ooo shit man...look! look! look!...she's
peakin"
"Wait for it....wait for it....PEAKER!"
"We got a lil' peakpeak I see"
R: "Any good
peakers today?"
T: "Holy shit man...Sam
Stickels..."