Green’s Dictionary of Slang

poo n.1

[1930s+]

1. the vagina.

2. (usu. UK/US juv., also pooh, poo-poo) excrement, an act of defecation; cite 1837 suggest a very early use (though ? misprint for pee) [SE poo! excl. announcing an unpleasant smell or expressing disbelief].

3. attrib. use of sense 2, pertaining to excrement or defecation.

4. in fig. use, rubbish, nonsense.

In compounds

poo-hammer (n.)

[2000s] (US black) a male homosexual.

pooh-butt (n.) (also poo-butt) [butt n.1 (1a)]

[1980s+] a weakling; a general derog. term.

pooh-chute (n.)

[1990s+] the anus.

poo-hole (n.) [1980s+]

1. the anus.

2. (Aus.) an unpleasant place.

3. an unpleasant individual.

poo-packer (n.)

[1990s+] a male homosexual.

poo palace (n.)

[2000s] (N.Z.) a homosexual bar.

poopants (adj.)

[2000s] stupid.

poo percolator (n.)

[1990s+] a male homosexual.

poo-pipe pirate (n.)

[1990s+] a male homosexual.

poo pirate (n.)

[1990s+] (Aus.) a male homosexual.

poo-pot (n.)

[mid-19C] a chamber-pot.

poo pusher (n.)

[1980s+] a male homosexual.

poo-stabber (n.) (also poo-jabber, poo-jammer, poo-puncher, poo-shooter)

[1990s+] a male homosexual; the active partner in homosexual anal intercourse.

In phrases

in the poo (also in the pooh)

[1960s+] (Aus.) in difficulties.

poos and wees

[2000s] (N.Z.) a mild phr. expressing disapproval or disgust.