finger trouble
n.— «The same quality has been designated “systematic diligence” elsewhere. Some radar observers exhibit “finger trouble” in tuning…» —by Stuart W. Cook Psychological research on radar observer training , 1947. (source: Double-Tongued Dictionary)
Further reading
Throwing cheese and shaky cheese are two very different things. In baseball, hard cheese refers to a powerful fastball, and probably comes from a similar-sounding word in Farsi, Urdu, and Hindi. Shaky cheese, on the other hand, is the grated...
Understanding the varieties of conversational styles can mean the difference between feeling you’re understood and being insulted. “High-involvement” speakers interrupt or talk along with someone else to signal their enthusiasm...