Verb Phrase Y

yak on	to continue talking in an annoying way ("on" can be repeated for emphasis)	He just yakked on and on and on.
yak on about +	to continue talking in an annoying way about something ("on" can be repeated for emphasis)	She just yakked on and on about her husband's new job.
yammer on	to talk in an annoying way or complain ("on" can be repeated for emphasis)	They yammered on and on and on.
yammer on about +	to talk in an annoying way about something or complain about ("on" can be repeated for emphasis)	He just yammered on and on about how horrible the waiter was.