Examples from literature

• He popped back into his cubbyhole. 
• His first visit there was to a small room in the basement—a dark cubbyhole next to the coal room. 
• I could not imagine what this little cubbyhole was, but as there seemed to be nowhere else to go, I went in. 
• It opened along lines previously concealed by the wood's grain and revealed a small cubbyhole built into the wall, probably meant for its present use, concealment. 
• Some of these cubbyholes were so tiny that a canary bird could scarcely have hidden in them, while other places where the stewards looked would have hidden a giant.