Talk (one's) pants off informal
Used to imply that one talks for such a long time that someone becomes tired or bored
When it comes to economics, he can talk your pants off.
Lisa is always talking my pants off when she meets me.
Used to describe someone who is good at persuading people to do or believe something
Primally used in the UK to indicate the typical manner of communication from the high social class
To frequently or constantly talk or complain about one's favourite topic or issue
Said of someone who talks constantly.
To talk
The verb "talk" should be conjugated according to its tense.
If you fall for someone's trick the first time then they are at fault.
Are you going to mess with me again? Fool me once, shame on you; fool me twice, shame on me.