gag gift
When you're getting a blow job and you say you're not gonna finish in her mouth, but then you slam her head down and make her gag before you give her a present. It's like a surprise party, but in her throat.
He promised not to finish in her mouth, then slammed her head down like she was a dog.
She said she'd give him a gift if he didn't finish in her mouth. He gave her a gift and then finished in her mouth.
He gave her a gift, then finished in her mouth, and then gave her another gift.