| 2026-03-26 | Zany behavior |
| 2026-01-22 | Escapade |
| 2026-01-09 | Shenanigan |
| 2025-08-24 | Ding-dong ditch, e.g. |
| 2025-02-10 | Shenanigan |
| 2024-06-25 | Stunt |
| 2022-09-22 | Shenanigan |
| 2022-07-28 | Like some face creams and serums, supposedly |
| 2022-07-03 | Shenanigan |
| 2021-10-03 | Bit of tomfoolery |
| 2020-12-22 | Caper |
| 2020-09-03 | Zany action |
| 2020-06-21 | Caper |
| 2019-10-15 | Caper |
| 2019-04-14 | Madcap |
| 2019-02-11 | Shenanigan |
| 2018-09-18 | Very silly |
| 2018-07-11 | Bit of a lark |
| 2018-06-04 | Silly prank |
| 2018-01-22 | Bit of clowning around |
| 2017-01-25 | Like Marx Brothers comedies |
| 2016-10-18 | Prank |
| 2016-05-16 | Shenanigan |
| 2016-04-08 | Shenanigan |
| 2016-03-30 | Bit of funny business |
| 2015-02-02 | Bit of tomfoolery |
| 2014-10-03 | Like much slapstick |
| 2014-09-09 | Three Stooges bit |
| 2014-07-27 | Like the Marx Brothers |
| 2013-12-11 | Shenanigan |
| 2012-10-28 | Prankster-like |
| 2012-10-21 | Caper ... or going around the wrong way, in Britain? |
| 2012-07-10 | Bit of tomfoolery |
| 2012-04-20 | Bit of funny business |
| 2012-01-03 | Like Robin Williams, typically |
| 2011-02-20 | Caper |
| 2011-02-12 | Like 21-Across's behavior |
| 2009-12-13 | Caper |
| 2009-05-12 | Marx Brothers-like |
| 2009-04-11 | Bit of harlequinade |
| 2009-03-26 | Monkeyshine |
| 2008-11-17 | Shenanigan |
| 2008-06-09 | Shenanigan |
| 2007-09-16 | Bit of tomfoolery |
| 2007-07-08 | Caper |
| 2007-06-25 | Playful trick |
| 2006-10-26 | Ludicrous |
| 2006-10-23 | Prank |
| 2006-09-03 | Robin Williams-esque |
| 2006-08-22 | Bit of hijinks |
| 2006-07-30 | Bit of tomfoolery |
| 2006-06-30 | "To put an ___ disposition on": Hamlet |
| 2006-05-18 | Shenanigan |
| 2006-05-14 | Ludicrous |
| 2005-12-18 | Like Charlie Chaplin |
| 2005-10-02 | Marx Brothers-like |
| 2005-05-19 | Madcap |
| 2004-05-18 | Caper |
| 2004-01-20 | Bit of silliness |
| 2004-01-07 | Bit of slapstick |
| 2003-05-18 | Caper |
| 2002-12-30 | Madcap |
| 2002-11-17 | Buffoonish |
| 2002-11-02 | Ludicrous |
| 2002-08-12 | Prank |
| 2002-06-19 | Prank |
| 2002-02-28 | Ludicrous (and a letter bank for 17-Across) |
| 2001-07-22 | Madcap |
| 2001-01-09 | Prank |
| 2000-09-14 | Caper |
| 1999-08-25 | Bit of high jinks |
| 1999-07-30 | Like the Marx Brothers |
| 1999-07-25 | Like the Beatles in "Help!" |
| 1999-01-21 | Bit of high jinks |
| 1998-12-21 | Shenanigan |
| 1998-12-12 | Ludicrous |
| 1998-09-27 | Marxlike |
| 1998-06-13 | Caper |
| 1998-03-22 | Bit of clowning |
| 1998-03-09 | Madcap |
| 1997-09-16 | Caper |
| 1996-08-28 | Caper |
| 1996-02-06 | Caper |
| 1995-11-26 | Shenanigan |
| 1995-10-15 | Bit of buffoonery |
| 1995-04-14 | Silly trick |
| 1995-01-03 | Monkeyshine |
| 1994-08-07 | Prank |
| 1994-06-01 | Shenanigan |
| 1994-05-22 | A bit of mischievousness |
| 1994-05-02 | Caper |
| 1994-04-25 | Bit of clowning |
| 1994-02-10 | Lark |
| 1994-02-02 | Lark |