Also written and said more grammatically correct as "suffice it to say" or "(it) suffices to say", this term basically, literally means "it is sufficient to say"
From the word "suffice" which when used as an intrasitive verb like in the example above, means "to meet present needs or requirements; be sufficient".
"Suffice to say" is often deemed an archaic version of the popular saying.
Current: "It suffices to say that my grief is unmatched."
Archaic: "Suffice to say, the trailer park in which that gentleman lives is quite the spacially economical achievement in residential land use."
A preamble, often used, which precedes something that the speaker cannot resist the urge to say (for a variety of reasons including loose mouth).
It is also either or both of the following:
Extremely critical of the person being spoken to, Revealing the truenature of the person speaking.
A retort used whenever someone gives advice and preaches about doing something despite never having do it themselves.
Rich kid: Stop complaining about the rich. Work hard, get rich. My dad was just an immigrant from a poor country, and through hard work, he became rich. If he can do it, so can you.
Normal person: Easy for you to say. You never had to work a damn day in your life. I'd like to see you try to get rich from scratch without your daddy's help, it'd blow up in your face.
A phrase that can be used to defer blame for telling a joke that is lame and/or unfunny. The blame is then shifted upon Jacob. The call must be said within 5 seconds much like the 3 second rule.
"Dude, that joke sucked!"
"Yeah, Jacob told me to say it."