Belonging to or associated with whichever person; whoever's.
as pronoun ‘the choice, whosever it was, is interesting’
- ‘she dialed whosever number she could still remember’
- ‘Our only birthday rule here is that whosever special day it is, they get to call the shots.’
- ‘‘I know’, he said, ‘I know you don't want my help or whosever help… but still.’’
- ‘I greedily took the cup from whosever's hands and gulped down the water.’
- ‘This was the author's, or whosever to whom authors assigned their intellectual property.’