Meaning of BUM in English

BUM

I. ˈbəm noun

Etymology: Middle English bom

Date: 14th century

: buttocks

II. adjective

Etymology: perhaps from bum (IV)

Date: 1859

1.

a. : of poor quality or nature

bum luck

bum advice

b. : not valid or deserved

a bum check

a bum rap

c. : not pleasant or enjoyable

a bum trip

2. : affected or disabled by damage or injury

a bum knee

III. verb

( bummed ; bum·ming )

Etymology: probably back-formation from bummer (I)

Date: 1863

intransitive verb

1. : loaf

2. : to spend time unemployed and often wandering — often used with around

transitive verb

: to obtain by asking or begging : cadge

bum a cigarette

IV. noun

Etymology: probably short for bummer (I)

Date: 1864

1.

a. : one who sponges off others and avoids work

b. : one who performs a function poorly

called the umpire a bum

c. : one whose time is devoted to a recreational activity

a beach bum

ski bum s

2. : vagrant , tramp

- on the bum

V. noun

Etymology: perhaps from bum (III)

Date: 1863

: a drinking spree : bender

VI. transitive verb

Etymology: probably back-formation from bummer (II)

Date: 1973

: disappoint , depress — often used with out

the news really bummed me out

Merriam-Webster's Collegiate English vocabulary.      Энциклопедический словарь английского языка Merriam Webster.