Variant of sucks. Used when you are sick of saying that sucks when someone else is going on and on about how much her life...well...sucks. Example: A. You know what happened to me? My boyfriend dumped me-- B. That sucks. A. Then, I lost my job-- B. Awww man, that sucks. A. Then, I wrecked my father's cherry 1963 Corvette! B. That really suctions!
SUCTIONS
Meaning of SUCTIONS in English
Slang English vocab. Английский сленговый словарь. 2012