
1) Antic 2) Buffoonery 3) Caper 4) Caprice 5) Clowning 6) Dido 7) Frolic 8) Gag 9) Harlequinade 10) Jape 11) Lark 12) Practical joke 13) Shenanigan 14) Trick 
Found on 
https://www.crosswordclues.com/clue/prank

1) April 1 activity 2) April 1 gag 3) April 1 offering 4) April 1st activity 5) April fool 6) Bit of horseplay 7) Bit of mischief 8) Boyish trick 9) Buffoonery 10) Candid Camera feature 11) Candid Camera set-up 12) Caper 13) Clowning 14) Common fraternity activity 15) Craziness 16) Dress up showily 
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https://www.crosswordclues.com/clue/prank

- acting like a clown or buffoon
 - a ludicrous or grotesque act done for fun and amusement
 
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• (a.) Full of gambols or tricks. • (n.) A gay or sportive action; a ludicrous, merry, or mischievous trick; a caper; a frolic. • (v. t.) To adorn in a showy manner; to dress or equip ostentatiously; -- often followed by up; as, to prank up the body. See Prink. • (v. i.) To make ostentatious show.
Found on 
http://thinkexist.com/dictionary/meaning/prank/

To adorn in a showy manner; to dress or equip ostentatiously; often followed by up; as, to prank up the body. See Prink. 'In sumptuous tire she joyed herself to prank.' (Spenser) ... Origin: Cf. E. Prink, also G. Prangen, prunken, to shine, to make a show, Dan. Prange, prunke, Sw. Prunka, D. Pronken. ... To make ostentatious show. 'White houses pra...
Found on 
http://www.encyclo.co.uk/local/20973
Prank  adjective  Full of gambols or tricks. [ Obsolete]
Found on 
http://www.encyclo.co.uk/webster/P/142
Prank  intransitive verb  To make ostentatious show. « White houses 
 prank where once were huts.» 
 M. Arnold. Found on 
http://www.encyclo.co.uk/webster/P/142
Prank  noun  A gay or sportive action; a ludicrous, merry, or mischievous trick; a caper; a frolic. 
 Spenser. « The harpies . . . played their accustomed 
 pranks .» 
 Sir W. Raleigh. « His 
 pranks have been too broad to bear with.» 
 Shak. Found on 
http://www.encyclo.co.uk/webster/P/142

Prank  transitive verb [  imperfect & past participle   Pranked ;  present participle & verbal noun   Pranking .] [ Confer English  prink , also German  prangen ,  prunken , to shine, to make a show, Danish  prange , 
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http://www.encyclo.co.uk/webster/P/142

[
v] - dress or decorate showily or gaudily 2. [v] - dress up showily
Found on 
http://www.webdictionary.co.uk/definition.php?query=prank

a trick of an amusing, playful, or sometimes malicious nature.
Found on 
https://www.infoplease.com/dictionary/prank
  No exact match found.