Abbreviation of "Get off my dick".
1. A phrase uttered in conversation when someone appears to simply be humouring you, behaving in a sycophantic or "yes
man"
fashion,. As opposed to carefully considering your standpoint.
2. A phrase uttered when someone is behaving in a
pretentious manner.
3. An exclamation, similar in usage to "for fuck's sake".
"That
girl keeps texting me smiley faces. GOMD already."
"She always needing to buy
something random with pineapples on it. GOMD!"