Treehouse of Horror VI

Used dismissively to cut off someone who is being unnecessarily complicated or show-offy. Not a standard dictionary entry in this sense; its meaning depends entirely on context and tone.

A compound noun used as an insult or teasing label for someone who acts as though they know everything. The literal words (sabe + lo + todo) do add up, but the fixed compound form and its social register as a dismissive put-down make it worth flagging.

While the words are transparent individually, the phrase carries a strong implied judgment in spoken Latin American Spanish: it signals that the time is unreasonable or suspicious, not just a neutral time reference.