Used in contexts where individuals are expected to perform as part of a group. In our class trip, we had to wait for the stragglers to catch up before we could continue.
Pro Tip 2/3
Not Negative
'Straggler' isn't always negative; it could imply someone's effort despite obstacles. Despite being a straggler, she finished the marathon with a smile.
Pro Tip 3/3
Metaphorical Use
Can describe someone lagging in non-physical situations, like learning or work. He's a bit of a straggler in math, but he's improving.