Back in the day's of legal drag racing at un- godly hours of the morning the consistent winning car was the one to beat.
Some people may remember the saying ..."that thing has got some balls"...meaning Power.
In the case of a 4 cyl UC the power is somewhat down or lacking altogether...hence "No Power equals "no balls" in a UC ="noballsUC"
A "eunuch" if you google it means "noballs"(first part)
eunUCh is just another way of saying "noballsUC"....although somewhat encrypted...hence the 'UC" in the name...was not my idea to
the "UC" in capitals...but it worked out well... spot on actually.
sheesh I make things hard sometimes...