have a cob onhave a coldhave a common groundhave a conniptionhave a conversationhave a cowhave a crack athave a crack at someonehave a craving forhave a creak athave a crow to pluck with someonehave a crushhave a crush onhave a crush on somebodyhave a curiosityhave a diphave a disagreementhave a discerning eyehave a dislikehave a distaste for somethinghave a dog in the fighthave a dog in the hunthave a dog in the racehave a down on someonehave a down to earth approachhave a draghave a dreamhave a drinkhave a dumplinghave a dutyhave a face like the back end of a bushave a fail safehave a familiar ringhave a family mealhave a feeling forhave a feelingshave a feverhave a fewhave a few days offhave a few screws loosehave a field dayhave a finger in every piehave a finger in the piehave a firehave a fithave a flinghave a flutterhave a fondness forhave a foot in both campshave a foot in both capms