Basically the principal that men are more sexually attracted and aroused
to new females after a certain amount
of time. The term comes
from an old joke according to which President Calvin
Coolidge and his wife were at a government farm one day and were taken around on separate tours. Mrs. Coolidge, passing
pens, inquired of a supervisor
whether the lone rooster was sufficient, given the many hens in the chicken
"Yes", the man said, "the rooster works very hard."
Mrs. Coolidge then asked, "Really? The rooster works very hard? Every day?"
"Oh, yes," the man said. "Dozens of times a day."
"Interesting!" Mrs. Coolidge replied, "Be sure to tell
that to the President!"
Some time later
the President, passing
the same pens, was told about
the roosters - and about
his wife's remark. "Same hen every time?", he asked.
"Oh, no, a different one each time," the supervisor
that," Coolidge said with
a sly nod, "to Mrs. Coolidge."
The Coolidge comes
into effect in the porno industry, where 'Fluffers' are used to get male porn stars erect before a scene, if they've been with
the main actress so long.
"I mean, I love
her and all... But i'm just SO greedy. Sometimes, I hate
the Coolidge Effect. Luckily she's bisexual."