1. To nap for so long that one ends up feeling more tired than before he or she took the nap.
2. To nap for a longer period than one expected to.
1. Dang, I overdozed again. Now I'm freakin' exhausted. What a huge waste of time.
2. Person A: I overdozed yesterday.
Person B: You don't say.
Person A: Yeah, I missed that afternoon class.
Person B: Sucks.
or
Person A: See you later. I'm gonna take a short nap now.
Person B: Better not overdoze. We've got stuff to do later.
Person A: I'll try not to.
When you consume too much of an item. Commonly used for someone that takes too many drugs.
DMC, we have a mid-thirties male found down, unresponsive, Possible overdose, substance unknown, Pulse is 60 and thready, respiration’s 8, He’s intubated And we’re bagging him now. Uh, BP 90 over palp, patient is cool, pale and diaphoretic. Has aspirated, Uh, GSC is 3, Will update en route, ETA 10 minutes.