っす

っす
auxiliary
casual です
1. casual form of です
a very casual, contracted form of です used in informal speech, particularly by young males
マジっすか。
Seriously? / Are you for real?
それ、ヤバいっすね。
That's crazy, isn't it?
(おれ)明日(あした)(やす)みっす。
I'm off tomorrow.

USAGE:
っす is a highly casual contraction of です commonly used by young males, especially among athletes, part-time workers, and in casual conversation with peers or superiors in informal settings.

FORMALITY:
While technically a polite form (derived from です), っす sounds much more casual and should not be used in formal situations, job interviews, or with strangers.

COMMON PATTERNS:

  • マジっすか - Seriously? (マジですか)
  • ~っすね - ~ですね
  • ~っすよ - ~ですよ
  • 大丈夫(だいじょうぶ)っす - I'm fine / It's okay

SOCIAL CONTEXT:
Often used by younger employees speaking to slightly older colleagues or 先輩(せんぱい) when trying to be polite but still casual.