An exclamation similar to "Jesus Fucking Christ" with the added sentiment of getting on one's last nerve, i.e., hanging by a shoestring. Best said when one is completely baffled.
"Christ on a shoestring, I have no idea what a guy wants. First date #1 wants to have sex, #2 wants a goodnight kiss, #3 thinks I'm too physically aggressive if I give him a hug and a kiss on the cheek to say goodnight. I might as well just become a lesbian."
by CathyM June 22, 2008