One who values the quality of sex above all else, often to the point that climax cannot occur unless the entire act is just right.
The dog hopped up on the bed halfway through coitus, and Dan--ever the perfucktionist--had to stop midthrust.
by Laughlynne April 26, 2016
A softer version of a perfectionist who does not give a fuck if no one appreciates what they have just made. Moreover, a perfucktionist will tell you to go fuck yourself if you start criticising their work. A perfucktionist knows what they have made is just perfect and fuck all those who disagree.
Save your breath and don't criticise John's painting. He's a perfucktionist, so all your efforts will be wasted.
by Murdoc Kylburne March 13, 2018