"fuddle yourself up" is a figure of speech for young or middle-aged people's disclosure of their secret attempts to entice a professor by engaging in sexual acts.
The term comes from the well know phrase "fuddle" which refers to cuddling while making
love.
Fuddling yourself up is quite
popular among
college applicants nowadays.
Haley, why
don't you go "fuddle yourself up" to that
college professor. You might have a way into
college then.
If you "fuddle yourself up", professors are more likely to write you a letter of recommendation.