When two people have sex with a donut. How it works:
female and male: male puts donut on dick and shoves dick in vagina.
male and male: one male puts donut on dick and shoves dick into asshole.
female and female: one female hold the donut around the other females vagina and licks or fingers the vagina through the hole.
When you have smash a girl and maybe your friends also smashed and your not smashing no more. Or meet someone you dont know who also has smashed the same girl
"We both had sex with her bro. Whaaaattt?" Nice! "dontmatter had sex"