Reminded of how I handle temporary instances of aphasia (mostly when I am undercaffeinated and overstressed):
“I can’t remember your human word for it.”
If asked what I meant by that, I respond, “Oops, you weren’t supposed to hear that. Never mind.”
At this point, the other person is left with questions (though not more than usual when interacting with me) and has forgotten the original thread of the conversation.

