Marshmallow your mom
When AmazingPhil tries to insult Daniel Howell when he doesn't hide the marshmallows
Dan: "I'll hide them down your throat"
Phil: "I'll marshmallow your mom"
Phil: "I'll marshmallow your mom"
marshmallow your mom
It's a sex act that Phil Lester has mentioned in the recent Halloween baking video
I'll marshmallow your mom's face