【正确答案】：
SLANG BELONGS TO THE SUB-STANDARD LANGUAGE, A CATEGORY THAT SEEMS TO STAND BETWEEN THE STANDARD GENERAL WORDS INCLUDING INFORMAL ONES AVAILABLE TO EVERYONE AND IN-GROUP WORDS LIKE CANT (SHOPTALK OF ANY SUB-GROUP) , JARGON, AND ARGOT, ALL OF WHICH ARE ASSOCIATED WITH, OR MOST AVAILABLE TO, SPECIFIC GROUPS OF THE POPULATION. 
【题目解析】：俚语属于非标准语言，介于一般标准词汇和非正式团体内部用词之间，如套语（cant）、行话（jargon）和黑语（argot），都在特定团体的人群中流行。