Third-person singular simple present indicative form of suck.(verb)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "sucks" in a sentence
"There have been times when after I've submitted an article that I realize that the title sucks - and have witnessed first-hand what you're talking about."
"The title sucks; it sounds like that stupid Michael Keaton comedy Multiplicity."
"GM officials said computer technicians found an unauthorized software program had been installed on a wireless router, and the program was altering the way Web pages were displayed to insert the word "sucks" after any mention of certain rivals on computers linked to the network."