The weed is spent; it's really not worth keeping unless you know you're going to be hella dry for a long time.

My two friends and I smoked an eighth of pre-vaped headies, and all it did was get us a little buzzed. It wasn't even that good a high.

I'd say throw it out; if you're ever desperate enough to get high that you're willing to smoke that shit, you should probably be cutting back anyway.