Oily substance forming on my bowl?

I noticed that this oily substance is forming on my bowl on my vapolution vaporizer.I felt like sticking my joint up in there and try rub off some all along my joint.Kinda coat my joint with some of that oil,but then it dawned on me it might not be good oil.....but then again,since its a vaporizer it wouldnt be toxic right?
But would it contain thc?

It's vapor that has condensed on the glass. Think of it as vapor your vape has saved for a rainy day ;). If you soak the bowl in alcohol (maybe add some salt) in a glass or ceramic bowl for a day, a lot of the residue will come off. Swish it around a few times during the soak. When you take it out and finish cleaning with a swab and pipe cleaner, let the alcohol evaporate and the residue that's left can be scraped off and smoked or vaped. It may be gummy or dried to the point where it scrapes off in flakes. Up to you whether you save it or not, but it definitely has potency. It's not at all like smoking the black resin left in a pipe.

you can scrape it up an smoke it if you want i do sometime when i clean the peices to my violcano its like honey oil an gets you quit lean if you jus bong it
it does contain thc along with a lot of other cannabinoids that fuck you up
ps i would never smoke the oil from inside a bong cos thatas some dirty shitty tar stuff,
vap oil is different though cos the vapour is pure so the oil is jus remains of thc an stuff that sticks not really tar as thats the idea of vapourizing,

Thanks guys,I was just noticing how my bowls on the vape wernt getting all dark like a pipe does after smoking.I use my Vape Daily,and its been about a month and I noticed on that part where you put the pellets,its getting this build up.Especially right after a session,its all oily,and yeah it looks like honey has been smeared inside the bowl.
I kinda did a small test,I had a white henkerchief,and I would blow out my vape hits through this white henkerchief,just to see if it would make like those nicotine stains....nothin.
anyhows,I think I will just save it for a rainy day.I also got a shit load of used pellets,I havent been throwing them away,their still kinda green.Looks likes its still good,just dry.

Yep. Residue and those crispy leftovers are surely worth saving for a rainy day, especially if the vaped weed still has some green. Smoke it or cook it up. I've got several baggies of brown stuff ready for processing. Haven't quite decided on a recipe yet. ;)