A Semi-Fuck is something you use to recover from saying Fuck. This can be used in various ways.
"Bro she curved me"
"Fuck man... that sucks.."
"But i got together with her sister bro"
"Semi-Fuck bro thats fucked"
A Semi-Fuck is something you use to express a situation in which you have semi fucked up
"I'm hurt cause of you"
"Fuck man"
"But shit is also kinda cool ngl"
"Semi-Fuck bro"