An expression used when things are shitty to the extent that the situtation is analogous to the displeasure a heterosexual male would feel if he were to suckle upon the testicles of another man.
I would rather be anywhere else than doing this if i could this thing/orginazation/group can suck my balls term for extremely boring forced activity
Jack was giving a lecture in band class about god KNows what and then i turned to cricket and said This sucks balls and we then were happly ejected from the lecture.
When something or someone is being so incredibly gay/retarded, the only thing you can compare it to that makes any logical sense is someone plopping a sick-ass nutsack into there mouth.