to sell well; bestselling; chart-topping

best-seller; best-selling book; blockbuster

unobstructed; unimpeded; free-flowing; smooth

to have a few drinks; to drink to one's heart's content

lit. fluently saying all one wants (idiom); to preach freely on one's favorite topic; to hold forth to one's heart's content

flowing (of speech, writing); fluent; smooth and easy

smooth and unhindered; fluent

happy; entirely free from worry

abundant and fluent; affluent and smooth

with no worries; cheerful; spacious