A coupon clipping, gossiping, breath snapping woman who is quick to judge, bitch and freak out; usually found in packs.
Sea hags are divided into ranks; young woman start as Private Sea Hags and bitch there way to the dreaded Sergeant Sea Hag
"Brandon's sister is such a sea hag, with all the bitching she does she will make her way to Sergeant in no time."
The grocery store was having a killer sale on lemon curd, but that didn't matter to Nitz, she still bitched about it all afternoon. You just can't please that ole' sea hag.