1
general::
Phrase(s): blast something off something else
to remove something from something else with a powerful charge, pressure, or force. • They blasted the writing off the wall with a stream of sand. • We will have to blast the paint off the wall., Phrase(s): blast off (for some place)
1. [for a space vehicle] to take off and head toward a destination. • The rocket blasted off for the moon. • Will it blast off on time? 2. Sl. [for someone] to leave for a destination quickly. • Ann blasted off for the library so she could study. • I’ve got to blast off. It’s late.
McGrawhill's American Idioms And Phrasal Verbs
2
general::
1. Also, blast away. Take off or be launched, especially into space, as in They're scheduled to blast off on Tuesday. This usage originated with the development of powerful rockets, spacecraft, and astronauts, to all of which it was applied. [c. 1950] 2. Depart, clear out, as in This party's over; let's blast off now. [Slang; early 1950s] 3. Become excited or high, especially from using drugs, as in They give parties where people blast off. [Slang; c. 1960]
American Heritage Idioms