A type of mask or face harness that has a rubber cock attached to the chin, thereby providing penetration AND oral stimulation at the same time. Hence "Accommodator."
"At first she thought the schlong protruding from my chin looked silly until I accommodated her brains out!"
a sex toy which you strap around your head, placing a rather large dong on your chin, so when you're down on the ole' vag, you can also achieve penetration