The word is certainly not unparliamentary. It could be said to constitute a form of advertising, but it is not disorderly.
EU Exit Negotiations
Proceeding contribution from
John Bercow
(Speaker)
in the House of Commons on Tuesday, 5 December 2017.
It occurred during Urgent question on EU Exit Negotiations.
Type
Proceeding contribution
Reference
632 c908 
Session
2017-19
Chamber / Committee
House of Commons chamber
Librarians' tools
Timestamp
2022-04-16 09:35:59 +0100
URI
http://hansard.intranet.data.parliament.uk/Commons/2017-12-05/17120568000150
In Indexing
http://indexing.parliament.uk/Content/Edit/1?uri=http://hansard.intranet.data.parliament.uk/Commons/2017-12-05/17120568000150
In Solr
https://search.parliament.uk/claw/solr/?id=http://hansard.intranet.data.parliament.uk/Commons/2017-12-05/17120568000150