A great talker is a great liar意思
"A great talker is a great liar" is an English idiom that suggests there is a correlation between being a skilled speaker and being a skilled liar. The phrase implies that people who are very good at talking, persuading, or convincing others are also likely to be very good at deceiving or lying.
This idiom is often used to caution people about being too trusting of someone who is exceptionally eloquent or persuasive, as their verbal skills could be used to manipulate or deceive. It implies that the ability to talk well can be a double-edged sword, benefiting both truth and deception.
However, it's important to note that not all great talkers are great liars, and not all great liars are great talkers. This phrase is a generalization and should be taken with a grain of salt. It's also worth remembering that effective communication is a valuable skill in many contexts, and it is not inherently deceitful.