slangy

Concise Oxford English Dictionary © 2008 Oxford University Press:
slang/slaŋ/

▶noun informal language that is more common in speech than in writing and is typically restricted to a particular context or group. ▶verb informal attack (someone) using abusive language.

– derivatives
slangily adverb,
slanginess noun,
slangy adjective.

– origin C18: of unknown origin.