that ain't no lie
that ain't no lie
A very informal way of emphasizing that something that was just said is the truth. A: "We're gonna get in some serious trouble if we get caught." B: "That ain't no lie—so let's not get caught!" All this legal stuff at work has me really stressed out, and that ain't no lie.
See also: lie, no, that
Farlex Dictionary of Idioms.
That ain't no lie.
Rur. What was said is true. (The highly informal word ain't is built into the expression.) Tom: Sure is hot today. Jane: That ain't no lie. I'm plumb exhausted, and that ain't no lie.
See also: lie, no, that
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
- glom
 - glom (someone or something)
 - glommed
 - after meat, mustard
 - how-d'ye-do
 - flow
 - I tell you
 - bottle
 - card
 - carded