It would intensify phrases that involve "fuck" or "bugger" being directed at oneself or another party, such as "bugger me" or "fuck you." The meaning is merely an intensifier and doesn't alter the meaning of the phrase in a useful way because being penetrated by a rusty rake would be extremely painful and hazardous to the receiving party.
To the guy who just cut me off in traffic: "Fuck you with a rusty rake!"
Upon seeing Trump win the 2016 election" well, bugger me with a rusty rake."
"Did Biden seriously try to blame inflation entirely on Putin? Bugger them both with a rusty rake!"
"Seriously, some co-worker I barely know wants me to go to a baby shower the week I'm supposed to go away? Fuck that with rusty rake."