The advice here tends to be: "Don't get rattled when another guy hits on your girl. Keep frame, etc" This is not bad advice, but it ends up turning into a drawn out interaction that does not need to occur at all. You can get the guy to fuck off/make him look stupid without keeping it going with essentially one phrase:
"Have a good night," then simply walking away with your girl.
I have done this countless times.
Most recently I went on a little morning walk with a plate/fwb after a full night of fucking (I tend to plate women I genuinely enjoy spending time with and I like having these little "mini-dates" with them before/after hooking up.) On our walk I had to use a bathroom so I popped into a place while she waited for me outside on a bench. When I get back there is some guy trying to chat her up. Her body language was not interested and even as I was walking up I could hear him say, "Is that the guy?" meaning she most likely told him something like "I am waiting for my man/bf/wtv"
When I walk up he sticks out his hand and says, "Hi I'm Keith, nice to meet you!" with a big smile. I sort of just look at him, say, "Nice to meet you, have a good day," without shaking his hand, then I calmly take the girl by the hand and walk away. Nothing else is said regarding the incident and I still see this girl regularly, fuck her mouth, ass, etc....
Another example I am in a bar with another fwb. We are sitting at the bar when a guy plops down next to us. He starts chatting us up but in ways that are clearly meant to bust my balls. He makes comments about my appearance, my demeanor, and how hot my woman is, all in the span of about 1 minute. Instead of coming up with something to say, or otherwise engage this idiot, I say, "Have a nice night," take my girl by the hand and move to another place in the venue. The girl 100% knew without being explicitly told why I was making this decision for us and did not question or shit test me.
The truth is, swatting away an AMOG by simply avoiding the entire interaction is as alpha as you can be. Do you think a king would entertain some asshole amoging him and trying to talk up his bitch for the night? If he doesn't have the guy arrested and tortured he will just separate himself from the riffraff.
The beauty of this method is it gives the AMOG 0 chance of saying anything witty as a rebuttal, or give you any rope to hang yourself with. If this is your woman and you've already been inside her, unless you want to fuck with an AMOG for fun you have 0 obligation to 'compete' with this idiot AMOG. As Jeff Bezos himself always says: Competition is for suckers. Look to create a monopoly for yourself.
Have a good night, bitches.