1She decided to lark about in the park on her day off, rather than tackling the pile of paperwork on her desk.
2The poet's use of language was so playful and inventive that it seemed he was larking about with words, rather than crafting a serious literary work.
3After a long week of studying, the students decided to lark around on the beach, enjoying the sunshine and each other's company.
4The artist's latest project was a lark, a whimsical experiment with colour and texture that brought a smile to the faces of all who saw it.
5There is something to be said for larking about in one's youth, for taking risks and pursuing wild ideas without worrying about the consequences.