Used to express regret for a foolish impromptu or impulsive past action.

(idiomatic, informal, chiefly in the negative) To do two normally trivial tasks at the same time.

(obsolete) for old times' sake

(Christianity, somewhat colloquial) religious to the point of excess; ridiculously religious

Alternative form of desperate times call for desperate measures

In adverse circumstances, actions that might have been rejected under other circumstances may become the best choice.

Every time, to an annoyingly repetitive or consistent degree.

It is better to arrive late than to risk your life speeding to a destination.

(electronics) A device for digitizing analog signals of very high bandwidth, effectively slowing down the original signal in time (or compressing its bandwidth) before it can be digitized by a slow electronic ADC.

(electronics) A very fast real-time optical imaging technique.