v. To stand about without any aim or purpose; to stand about idly; to linger; to hang around.
the GNU version of the Collaborative International Dictionary of English
verb-intransitive. To be slow in moving; to delay; to linger; to be dilatory; to spend time idly; to saunter; to lag behind.
verb-intransitive. To wander as an idle vagrant.
The Century Dictionary and Cyclopedia
To linger; be unduly slow in moving; delay; be dilatory; spend time idly.
Synonyms To lag, tarry, saunter, dilly-dally.
To consume or waste, as time, idly or carelessly: used with away: as, he loitered away most of his leisure.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
v. be about
Word Usage
"An even more advanced Tactical Tomahawk coming in two years will be able to change course in midflight and even "loiter" over targets, doing lazy figure-eights in the sky, while it waits for exact coordinates."