not so fast


Also found in: Acronyms.

not so fast

1. Literally, slow down; don't move or do something so quickly. OK, now just ease the car around this turn. Whoa, not so fast!
2. exclamation Stop right there! Don't move! Not so fast, Mark! I have a few things I need to discuss with you about your behavior in class before you leave.
See also: fast, not

not so ˈfast

(informal) often used for telling somebody who may have done something wrong, etc. to stop or wait: Not so fast, young man! Let me see your ticket!‘I’m going out to play now, Dad.’ ‘Not so fast, David. You’ve got to tidy your room first.’
See also: fast, not
References in periodicals archive ?
Not so fast. The main evidence behind Prevagen's "thinking" and "memory" claims is an unpublished company study done five years ago.
So far, GLBT organizations have taken a "not so fast" stance on this development, but Springfield's logic appears unassailable.
Not so fast, says Howard McCurdy, a space historian at American University.
Well, not so fast. When asked for his opinion regarding the project, ISTE CEO Don Knezek said: "I think the danger in novelty approaches is that you get so excited about the motivational factor that it might leave holes in the overall experience of computer literacy.
"Hydraulics are usually efficient but not so fast and not so precise," says Alan A.
But wait, not so fast. The doctor has agreed to suspend the treatment until it receives regulatory approval in India.
Not so fast you bling-bling heads, I don't mean "rocks!" in a Limp Bizkit way.
Not so fast. Over one million Americans will be diagnosed this year with skin cancer and sunscreen is not to blame--the sun is.
Not so fast. Make no mistake: PC makers still earn plenty of money.
Elam Jr.'s company, Esystems Inc., stands for "electronic." Not so fast. At a time when dotcoms are crumbling due to conspicuously low levels of business acumen on the part of their founders, "the `E' in Esystems epitomizes the high level of service we strive to provide--excellent, exceptional, and extraordinary," states Elam.
Not so fast with those prognostications about the political bent of the upcoming Legislature, at least when it comes to the Senate.
Not so fast. When used correctly, it's a sound strategy, insist Balachandran and Thiagarajan.
Not so fast. The vast majority of direct care workers in this study, and in many others, say money is their number one problem.
Not so fast. Hard on her heels is the suspect's sister, a combative, multi-braided militant who immediately accuses the cops of police brutality.
Not so fast. According to a new study reported in the journal Social Forces, there may be no gender gap at all.