On Wed, 14 Mar 2018 17:53:21 +0100, Morten Bo Johansen <
m...@spamcop.net>
wrote:
In this case the bum is a person's backside, the buttocks.
I think the idea is than during "tense final stages of a league
competition" the manager of a team will be restless. Assuming that he is
sitting, he will not be sitting calmly but will be moving restlessly on
the seat possibly with sudden uncontrolled movements.
If there is a squeaking sound it will be caused by the rubbing of his
trousers on the surface of the seat he is on. This depends on the
material of his trousers and what the surface of the seat it. It might
also be affected by perspiration.
--
Peter Duncanson, UK
(in uk.culture.language.english)