an arrangement of elements / a sequence of events, behaviors, facts, etc. / (textiles) a template for pieces of a garment

(adverbial particle, dismissive, derogatory) emphasizes disgust, contempt, or otherwise negative feelings of the speaker: whatever

What? What did you say?

whatchamacallit, X

repetitive, one-track

the same behavior repeated over and over again / being in a rut / (of a person) having a one-track mind

(broadcasting) test pattern

pattern maker

the mon, an old currency / a unit of length for measuring the size of one's foot (from the way that the mon coins would be lined up and used as a kind of inch marker) / a character, a letter

(grammar) a sentence / writing, composition / a design or pattern as decoration / literature, learning, scholarship / elegance, refinement (especially of writing or wording)