you are at a loss for words
talk a mile a minute
it's all Greek to me
talk is cheap
mince one's words
loaded language
eat one's words
it goes without saying
in plain English
words fail me
it's difficult to understand
to speak vaguely or indirectly
wording that attempts to influence an audience by using appeal to emotion or stereotypes
it is easier to say you will do something than to actually do it
I'm unable to express myself because I'm too emotional about sth
you are stunned to the point of speechlessness
to admit that one was not right about something they said earlier
in clear, simple language
something is really obvious
to speak very fast