Definition of I'm not being funny, but — in English:

I'm not being funny, but —

phrase

informal
  • Used before a statement or suggestion to point out that it is serious, however facetious or strange it may seem.

    ‘I'm not being funny but I haven't got all day’
    • ‘Look, I'm not being funny, but it is a bit poor saying you have fallen in love with a girl you hardly know.’
    • ‘Once asked how he would like to be perceived by his public, he paused for thought then said: ‘I'm not being funny, but I'd settle for blind adoration.’’
    • ‘I'm not being funny, but I went round to his house and he had pictures of me everywhere.’
    • ‘Now I'm not being funny, but isn't Public Relations supposed to be about word of mouth?’
    • ‘I'm not being funny, but if he goes on like this we'll have real trouble keeping hold of him.’