[first thing off the bat] {adv. phr.} Immediately; at once. * […]

[fit to be tied] (2) {adv. phr.}, {substandard} Very hard. - […]

[flat-out] {adv. phr.}, {informal} 1. Without hiding anything; plainly; openly. * […]

[for a song] {adv. phr.}, {informal} At a low price; for […]

[for all one cares] {adv. phr.} In the opinion of one […]

[for all one knows] {adv. phr.} According to the information one […]

[for all that] {adv. phr.} In spite of what has been […]

[for all the world] {adv. phr.} 1. Under no circumstances. * […]

[for better or worse] or [for better or for worse] {adv. […]

[for days on end] {adv. phr.} For a long time; for […]