Angus McWhirter

An Angus McWhirter is
(a) a regular on 70s children's tv show, along side host Roy Castle and twin brother, Norris.

(b) rhyming slang meaning, making a woman squirt whilst in the throws of anal sex.

Blimey, I rogered the missus so hard up the log flume she did an Angus

Angus McWhirter