double-binning

When creating a histogram, the error of choosing the number of bins less than the number of distinct values, thus "double-binning" two distinct values into one bin.

S: "Man, I don't know what is wrong with my histogram. Why is there a spike at either end?"
M: "Have you checked for double-binning?"
S: "Ahhhhhhhh"

double-binning

When creating a histogram, the practice of choosing less bins than you have distinct values, thus "double-binning" (at least) two distinct values into a single bin.

S: "Man, this histogram looks odd. Why is there a spike at either end?"
M: "Are you double-binning?"
S: "Ahhhhhhhh"

Byrned

Replying all to an invite to an office teambuilding event with an acerbically terse declination of said invite.

Not only is he not coming, he went and Byrned the entire office.