not fitting closely; hanging loosely
"baggy trousers"
"a loose-fitting blouse is comfortable in hot weather"
excessively or abnormally emotional
"After hearing the tragic news, she was so sloppy that tears streamed down her face uncontrollably during the entire funeral service."
Very wet; covered in or composed of slop.
"After the storm broke through the roof, the attic floor became so sloppy that we couldn't walk without sinking into the thick sludge."