from The Century Dictionary and Cyclopedia
- n. In a harness for a horse, the ornamental hook over which the check-rein is hung.
Sorry, no etymologies found.
I guess there will still be a market for e-mail services allowing gay men with HIV and other STDs to anonymously inform sexual partners of their status, post-hook up.
More information on the permissions and post-hook scripts (for BUG:, CCMAIL: etc) can be found on the