Are off Base Meaning?

phrase [usually verb-link PHRASE] If you say that someone is off base, you mean that they are wrong. [mainly US, informal]

Is off base or off basis?

Incorrect; mistaken or misinformed; not aligned with reality. An allusion to baseball, in which baserunners are only "safe" if their foot is touching a "base." Hyphenated if used before a noun.

What does being on base mean?

: occupying one of the bases (first, second, or third) during a game There's a runner on base.