attempting to reach the unreachable, in the old days a carrot was tied to a stick in front of a wagon's mule / stubborn horse to make them step forward and walk ahead . . . they were never able to reach the carrot.

From STEM, an abbreviation short for "Science, Technology, Engineering and Mathematics", a STEMlord is a pejorative term for a particular kind of person who has studied in these areas at university or works in these fields who holds a pretentious, condescending attitude to anyone who has studied in any other fields, particularly the Arts and Humanities. They typically believe themselves to be more "intelligent" and "rational", while generally remaining incredibly ignorant outside of their areas of expertise and having the charisma of a rotting pig's backside.

When a girl continues to go after a guy even though he isn't interested.

running after an orange root vegetable. or you could use a speed boat.

ti masterbate with chettos

a woman who wants to give oral sex to a man

To masturbate.