head / chief / first (occasion, thing etc) / classifier for poems, songs etc

= + : In the outhouse, the chief lends his piece pipe to Sherlock Holmes. Sherlock smokes some weed in the pipe and looks at himself in a hand mirror, thinking that he's uber cool and that he'd pass as a quite formidable chief himself.

首 character breakdown

self / oneself / from / since / naturally / surely

= + : Mnemonic symbol: a hand mirror, which someone uses to look at themselves.

The Eye of Providence (目) is looking at itself (自) in a handheld mirror (自) in the space station's bathroom (Ø4). It think it's indeed looking very good, since Zorro (z) attached a petal (丶) to its eye (目).
Character component without intrinsic meaning

= + : Mnemonic symbol: weed. A crocodile (丷) is smoking weed (䒑) in a flute (一).

Characters with 首 as component

road / path / CL:條|条[tiao2],股[gu3] / principle / truth / morality / reason / skill / method / Dao (of Daoism) / to say / to speak / to talk / classifier for long thin things (rivers, cracks etc), barriers (walls, doors etc), questions (in an exam etc), commands, courses in a meal, steps in a process / (old) circuit (administrative division)

= + : The chief and Don Quixote decided to follow the path of the Dao in the aorta's bathroom. They wear gladiator sandals and meditate sitting on the floor of the bathroom, envisioning the path to enlightment.
cheekbone / crossroads / high
bow of a ship
(literary) to cut off the left ear of a slain enemy / the severed ear of a slain enemy

Words with 首

head of state
head; boss; chief
head / boss / chief
capital city of an autonomous region
first choice / premium / to come first in the imperial examinations
to turn around / to look back / to recollect
to turn around; to look back / (fig.) to recall the past
top of the list
to give a nod of approval
chief / first / brightest and best
to follow blindly (idiom) / to take as one's only guide

Sentences with 首

rú
ji̅n
 
 
ǎn
lǎo
su̅n
dào
zuò
le
gè
shǒu
xí