be less sarcastic

To work on this, it’s necessary to learn the terms of art that relate to the subject.

Pronunciation: ‘sar-”ka-z&m
Function: noun
Etymology: French or Late Latin; French sarcasme, from Late Latin sarcasmos, from Greek sarkasmos, from sarkazein to tear flesh, bite the lips in rage, sneer, from sark-, sarx flesh; probably akin to Avestan thwar&s- to cut.

• 1. a sharp and often satirical or ironic utterance designed to cut or give pain.
• 2. a : a mode of satirical wit depending for its effect on bitter, caustic, and often ironic language that is usually directed against an individual. b : the use or language of sarcasm (this is no time to indulge in sarcasm.)

_{Definition courtesy of Merriam-Webster Online Dictionary.}

Note: If you are having trouble understanding the definition of the word ‘sarcasm’, perhaps your time would be best used tackling another field of study.