When he pushed against the blob his hands simple sinked inside of the sticky mass.  The end of the tendril then came back from the wall.  It wrapped around the rest of his arms and shoulders.  Soon all of his head and shoulders along with his arms were trapped in the blob.  It then started to suck on his body.  It began to suck him in slowly, inch by inch.  It held him tightly but in the sense like tar holds onto someone, and this sticky mass could move to make sure he wouldn’t get away.