(slang, vulgar) Indicates disapproval, disagreement, or disbelief, often with a tone of disregard, disdain, or disgust, referring to the buttocks.

(slang, vulgar) I; me; myself; oneself in the third person.

Refers to the person one is addressing, when giving caution or advice, indicating that the person is inferior in some way. It does not necessarily refer to a relationship.

according to me

(idiomatic, euphemistic, chiefly US and Canada) oh my God

A polite reaction to receiving thanks, meaning that the speaker enjoyed helping the listener.

As far as I know.

(idiomatic) In my opinion; as I see it; in all likelihood.

Alternative form of methinks

(UK) Used in direct address to peers of the realm, usually now excluding dukes and the Lords Spiritual. / (UK) Used in direct address to bishops, particularly Anglican ones.