It's what a girl calls the guy who's fucking her hard
“Daddy” can be used in a sexual or non sexual way. Normally older girls call their boyfriends Daddy.
Girl 1: ugh yes daddy, you make me feel so horny.
Girl 2: goodnight daddy, I love you.
A person who has a big cock and pounds me and makes me whimper for more
Kitty: ohhhh fuckkkkkk more please daddy
My amazing boyfriend named Levi who takes care of me when I’m sad and cuddles me when it’s storming because he knows I’m scared of storms