six o'clock sharp
With the trunks gone the boys had more room in which to move about , for which they were thankful . `` How about supper ? '' questioned Andy , presently , as a bell rang out sharply . `` We have supper at six o'clock sharp , '' returned Fatty , quickly . `` Last year we were at a table with Professor Grawson , '' put in Spouter . `` He 's a pretty nice man . I hope I get at his table again . ''