Think of "overeater" but in the Twitter realm. Someone who tweets way too often, especially when they have their twitter connected to their facebook so you have to see their stupid inane tweets every three minutes on your newsfeed.
When trying to “swerve” someone who is annoying and is known to spread gossip but “overswerve” into their equally annoying friend who reports directly to the original “swerve”.
Last night I tried to “swerve” Becky and “overswerved” into her annoying friend on accident. Got stuck with them all night.
A secret stash of facial-tissues dat you keep for emergencies.
During winter months, you should always maintain an oversneeze bank account to ensure dat other folks in your household don't "blow through" your entire supply, and dat you'll therefore still have some to use for your own copiously-draining nasal-works.