fast-talk

[fast-tawk, fahst-] /ˈfæstˈtɔk, ˈfɑst-/
verb (used with object)
1.
to persuade with facile argument, usually with the intention to deceive or to overwhelm rational objections:
The salesperson tried to fast-talk me into buying a suit I didn't want.
Origin
1945-50, Americanism
British Dictionary definitions for fast talk

fast talk

noun
1.
fervent, deceptive patter
verb
2.
to influence (a person) by means of such patter
Slang definitions & phrases for fast talk

fast talk

noun phrase

Talk meant to deceive or confuse: glib and plausible nonsense: Ignore the fast talk and don't sign a thing (1950s+)