(colloquial) Used when a speaker attempts to categorize an observable fact or event, although the category is subjective or lacks clearly defined parameters.

(colloquial, archaic) A form of mild swearing used to emphasis the truth of an assertion; accompanied by if and the opposite of the assertion.

Alternative form of I wish I may be shot

Alternative form of I know you are but what am I

(rhetorical question, colloquial, childish) Assertion that an insult made by the party to whom the phrase is directed is actually true of that party, and not of the person using the phrase. Usually considered to be a playground taunt.

Indicates that a person's underwear is showing.

(colloquial, rhetorical question) Alternative form of am I right, implying the speaker can't possibly be wrong.

An affirmation of affection or deep caring, especially to a family member. / An affirmation of romantic feeling to a lover or spouse. / A platonic expression of strong inclination or liking to a friend.

(computing) Of total system throughput, being limited by the input/output rate, rather than by processing speed of the CPU.

(derogatory, Internet slang) You are stupid; said as if lowering oneself to an equally moronic state of mind.