When a girl gives a guy a blow job then pretends to swallow only to come up for a kiss and dump his load into his mouth. Much like a penguin feeds their young.
This girl totally Penguined me last night! "WHAT?!? She did The Penguin to you too?"
"I was sick of swallowing so I did The Penguin to him instead. Can you say in your face any louder?!?!"