Green’s Dictionary of Slang

werk! excl.

(US) excl. of affirmation.

Urban Dict. 23 Apr. 🌐 Nurse Cracker got 20 PLUS 1's for the Mayan Party....WERK!
[US]C. Eble (ed.) UNC-CH Campus Sl. Spring 2016 11: WERK — expression of approval: ‘You killed that dance! Werk!’.