What does elk stand for elastic?

Excuse me, could you clarify what you mean by "elk stand for elastic"? As I understand, elk is typically an animal, a large deer species native to North America, Europe, and Asia. On the other hand, "elastic" refers to a material that can stretch and return to its original shape. There seems to be a disconnect between these two terms. Could you please elaborate on the context or the intention behind your question? Are you perhaps asking about a specific acronym, terminology, or programming language where "ELK" might have a meaning related to "elastic"?