Phone-alingus
The act of ultra-oral stimulation during phone sex. When one person becomes so excited by the drrty words being told, they proceed to lick the receiver enthusiastically, while the other person moans realistically and (optional!) holds the phone to different areas of the body.
"Jennie sounded so hott over the phone, I couldn't help myself. I admit it, I gave her phone-alingus. My mom uses that phone..."