The term 'slangy putdown' can be defined as an informal insult or criticism. The two crossword solutions for this term are DIS (3 letters) and GETALIFE (8 letters). DIS is a shortened version of the word 'DISRESPECT' which is defined as a lack of respect or courtesy. GETALIFE is a phrase used to express disapproval or contempt towards someone's behavior or lifestyle. Both of these terms are commonly used in informal conversations as a way to express disapproval or criticism.