Meaning: To complain or protest, especially about something which does not seem important.
Whinge as a verb:
"She's always whinging about something."
"I went out with Tom last night. He spent the whole evening whinging about his wife."
Whinge as a noun:
"Some people enjoy having a little whinge now and again."
And what do we call a person who is always whinging? A whinger, of course!
Other Synonyms: moan, grumble and whine.