that's it; that is the end; there is no more

Alternative form of it's a joke, Joyce.

as likely as not

(slang, obsolete) That's it; that's the spirit; expressing approval or encouragement.

as; in the way that.

(slang, humorous) Sarcastically or self-deprecatingly said at the end of a wordy and often preachy monologue.

(US, Southern, idiomatic) An expression of disapproval or disbelief.

Alternative form of more often than not

Alternative form of more often than not

(slang) Used to express disapproval of an action. / Used other than figuratively or idiomatically: see that, ain't, it.