[1900s-30s] (UK prison) by meton., a prison sentence.
[1930s] by meton., a term of imprisonment.
one who steals from washing lines; by ext. a small-time petty criminal.
(UK prison) to get penal servitude.
SE in slang uses
[1960s+] to panic, to behave hysterically.
see bore the pants off under pants n.
[20C+] a phr. used to indicate the speaker’s inability to believe an extremely unlikely story.
see get into someone’s pants under pants n.
1. to become excessively agitated over a problem or situation, to worry to extremes; thus don’t get your knickers in a twist, stop getting so worried; knicker-twisting, agonizingly worrying; thus used with other garments (cf. get one’s tits in a twist under tit n.2 ).
2. to make a mistake, to be under a misapprehension, to ‘get the wrong end of the stick’.
see under eat v.
[1960s] to be quiet, to stop talking, esp. as imper.
see wet one’s pants under pants n.
see keep your pants on! under pants n.